Finding the Fourth Proportional to 530,841.87, 732,557.99 and 289,123.70
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Solution
The fourth proportional to 530,841.87, 732,557.99 and 289,123.70 is: 398,988.64
Step by Step Solution
- Step 1: Write the proportion equation
530,841.87 : 732,557.99 = 289,123.70 : x - Step 2: Convert to fraction form
530,841.87/732,557.99 = 289,123.70/x - Step 3: Cross multiply
530,841.87x = 732,557.99 × 289,123.70 - Step 4: Simplify right side
530,841.87x = 211,799,873,593.38 - Step 5: Solve for x
x = 211,799,873,593.38/530,841.87 - Step 6: Final answer
x = 398,988.64
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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.