Finding the Fourth Proportional to 667,115.87, 920,618.68 and 361,192.21
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Solution
The fourth proportional to 667,115.87, 920,618.68 and 361,192.21 is: 498,444.59
Step by Step Solution
- Step 1: Write the proportion equation
667,115.87 : 920,618.68 = 361,192.21 : x - Step 2: Convert to fraction form
667,115.87/920,618.68 = 361,192.21/x - Step 3: Cross multiply
667,115.87x = 920,618.68 × 361,192.21 - Step 4: Simplify right side
667,115.87x = 332,520,292,391.96 - Step 5: Solve for x
x = 332,520,292,391.96/667,115.87 - Step 6: Final answer
x = 498,444.59
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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.