Finding the Fourth Proportional to 927,487.08, 1,391,430.12 and 287,778
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Solution
The fourth proportional to 927,487.08, 1,391,430.12 and 287,778 is: 431,728.90
Step by Step Solution
- Step 1: Write the proportion equation
927,487.08 : 1,391,430.12 = 287,778 : x - Step 2: Convert to fraction form
927,487.08/1,391,430.12 = 287,778/x - Step 3: Cross multiply
927,487.08x = 1,391,430.12 × 287,778 - Step 4: Simplify right side
927,487.08x = 400,422,977,073.36 - Step 5: Solve for x
x = 400,422,977,073.36/927,487.08 - Step 6: Final answer
x = 431,728.90
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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.