Finding the Fourth Proportional to 489,639.87, 733,869.05 and 252,853.11
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Solution
The fourth proportional to 489,639.87, 733,869.05 and 252,853.11 is: 378,974.59
Step by Step Solution
- Step 1: Write the proportion equation
489,639.87 : 733,869.05 = 252,853.11 : x - Step 2: Convert to fraction form
489,639.87/733,869.05 = 252,853.11/x - Step 3: Cross multiply
489,639.87x = 733,869.05 × 252,853.11 - Step 4: Simplify right side
489,639.87x = 185,561,070,360.98 - Step 5: Solve for x
x = 185,561,070,360.98/489,639.87 - Step 6: Final answer
x = 378,974.59
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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.