Finding the Fourth Proportional to 681,455.08, 940,414.20 and 375,542.42
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Solution
The fourth proportional to 681,455.08, 940,414.20 and 375,542.42 is: 518,251.95
Step by Step Solution
- Step 1: Write the proportion equation
681,455.08 : 940,414.20 = 375,542.42 : x - Step 2: Convert to fraction form
681,455.08/940,414.20 = 375,542.42/x - Step 3: Cross multiply
681,455.08x = 940,414.20 × 375,542.42 - Step 4: Simplify right side
681,455.08x = 353,165,424,470.36 - Step 5: Solve for x
x = 353,165,424,470.36/681,455.08 - Step 6: Final answer
x = 518,251.95
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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.