Finding the Fourth Proportional to 527,425.11, 727,850.15 and 285,707.70
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Solution
The fourth proportional to 527,425.11, 727,850.15 and 285,707.70 is: 394,278.52
Step by Step Solution
- Step 1: Write the proportion equation
527,425.11 : 727,850.15 = 285,707.70 : x - Step 2: Convert to fraction form
527,425.11/727,850.15 = 285,707.70/x - Step 3: Cross multiply
527,425.11x = 727,850.15 × 285,707.70 - Step 4: Simplify right side
527,425.11x = 207,952,392,301.16 - Step 5: Solve for x
x = 207,952,392,301.16/527,425.11 - Step 6: Final answer
x = 394,278.52
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.