Finding the Fourth Proportional to 769,793.28, 1,062,337.92 and 430,252.80
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Solution
The fourth proportional to 769,793.28, 1,062,337.92 and 430,252.80 is: 593,761.83
Step by Step Solution
- Step 1: Write the proportion equation
769,793.28 : 1,062,337.92 = 430,252.80 : x - Step 2: Convert to fraction form
769,793.28/1,062,337.92 = 430,252.80/x - Step 3: Cross multiply
769,793.28x = 1,062,337.92 × 430,252.80 - Step 4: Simplify right side
769,793.28x = 457,073,864,626.18 - Step 5: Solve for x
x = 457,073,864,626.18/769,793.28 - Step 6: Final answer
x = 593,761.83
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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.