Finding the Fourth Proportional to 927,489.08, 1,391,433.12 and 287,780
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Solution
The fourth proportional to 927,489.08, 1,391,433.12 and 287,780 is: 431,731.90
Step by Step Solution
- Step 1: Write the proportion equation
927,489.08 : 1,391,433.12 = 287,780 : x - Step 2: Convert to fraction form
927,489.08/1,391,433.12 = 287,780/x - Step 3: Cross multiply
927,489.08x = 1,391,433.12 × 287,780 - Step 4: Simplify right side
927,489.08x = 400,426,623,273.60 - Step 5: Solve for x
x = 400,426,623,273.60/927,489.08 - Step 6: Final answer
x = 431,731.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.