Finding the Fourth Proportional to 396,744.13, 547,880.41 and 276,214.91
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Solution
The fourth proportional to 396,744.13, 547,880.41 and 276,214.91 is: 381,436.62
Step by Step Solution
- Step 1: Write the proportion equation
396,744.13 : 547,880.41 = 276,214.91 : x - Step 2: Convert to fraction form
396,744.13/547,880.41 = 276,214.91/x - Step 3: Cross multiply
396,744.13x = 547,880.41 × 276,214.91 - Step 4: Simplify right side
396,744.13x = 151,332,737,272.90 - Step 5: Solve for x
x = 151,332,737,272.90/396,744.13 - Step 6: Final answer
x = 381,436.62
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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.