Finding the Fourth Proportional to 527,475.28, 791,201.76 and 128,117.92
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Solution
The fourth proportional to 527,475.28, 791,201.76 and 128,117.92 is: 192,174.17
Step by Step Solution
- Step 1: Write the proportion equation
527,475.28 : 791,201.76 = 128,117.92 : x - Step 2: Convert to fraction form
527,475.28/791,201.76 = 128,117.92/x - Step 3: Cross multiply
527,475.28x = 791,201.76 × 128,117.92 - Step 4: Simplify right side
527,475.28x = 101,367,123,791.54 - Step 5: Solve for x
x = 101,367,123,791.54/527,475.28 - Step 6: Final answer
x = 192,174.17
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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.