Finding the Fourth Proportional to 861,935.68, 1,292,105.28 and 440,281.60
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Solution
The fourth proportional to 861,935.68, 1,292,105.28 and 440,281.60 is: 660,014.65
Step by Step Solution
- Step 1: Write the proportion equation
861,935.68 : 1,292,105.28 = 440,281.60 : x - Step 2: Convert to fraction form
861,935.68/1,292,105.28 = 440,281.60/x - Step 3: Cross multiply
861,935.68x = 1,292,105.28 × 440,281.60 - Step 4: Simplify right side
861,935.68x = 568,890,180,046.85 - Step 5: Solve for x
x = 568,890,180,046.85/861,935.68 - Step 6: Final answer
x = 660,014.65
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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.