The department may, where necessary to ensure the effective operation of a multipurpose senior services program, advance to the program’s local government and private nonprofit administering agency, an amount not to exceed 25 percent of the estimated annual allocation to the program, under this chapter, as determined by the department pursuant to the estimated annual budget submitted by the program. Subsequent payments to the local government and private nonprofit administering agency for the Multipurpose Senior Services Program shall be prorated to reflect any advance payment made under this section.