Finding the Fourth Proportional to 728,399.73, 1,005,530.08 and 518,982.63
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Solution
The fourth proportional to 728,399.73, 1,005,530.08 and 518,982.63 is: 716,437.18
Step by Step Solution
- Step 1: Write the proportion equation
728,399.73 : 1,005,530.08 = 518,982.63 : x - Step 2: Convert to fraction form
728,399.73/1,005,530.08 = 518,982.63/x - Step 3: Cross multiply
728,399.73x = 1,005,530.08 × 518,982.63 - Step 4: Simplify right side
728,399.73x = 521,852,646,111.24 - Step 5: Solve for x
x = 521,852,646,111.24/728,399.73 - Step 6: Final answer
x = 716,437.18
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.