Yes, you would send in the remaining balance, unfortunately you won't know the exact amount but the following link has information on how to calculate the amount. Any additional amount owed the IRS will send you a letter stating what you owe.
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/businesses/small-businesses-self-employed/understanding-penalties-and-interest">...>
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You should also include the 1040-V payment form with your Federal payment
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/f1040v.pdf">https://www.irs.gov/pub/irs-pdf/f1040v.pdf</a>
