Finding the Fourth Proportional to 527,716.13, 791,574.20 and 128,357.17
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Solution
The fourth proportional to 527,716.13, 791,574.20 and 128,357.17 is: 192,535.76
Step by Step Solution
- Step 1: Write the proportion equation
527,716.13 : 791,574.20 = 128,357.17 : x - Step 2: Convert to fraction form
527,716.13/791,574.20 = 128,357.17/x - Step 3: Cross multiply
527,716.13x = 791,574.20 × 128,357.17 - Step 4: Simplify right side
527,716.13x = 101,604,227,192.25 - Step 5: Solve for x
x = 101,604,227,192.25/527,716.13 - Step 6: Final answer
x = 192,535.76
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Similar ratio
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1.5x scale
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.