Finding the Fourth Proportional to 461,141.20, 691,711.80 and 425,711.80
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Solution
The fourth proportional to 461,141.20, 691,711.80 and 425,711.80 is: 638,567.70
Step by Step Solution
- Step 1: Write the proportion equation
461,141.20 : 691,711.80 = 425,711.80 : x - Step 2: Convert to fraction form
461,141.20/691,711.80 = 425,711.80/x - Step 3: Cross multiply
461,141.20x = 691,711.80 × 425,711.80 - Step 4: Simplify right side
461,141.20x = 294,469,875,459.24 - Step 5: Solve for x
x = 294,469,875,459.24/461,141.20 - Step 6: Final answer
x = 638,567.70
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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.