Finding the Fourth Proportional to 861,526.44, 1,292,290.02 and 387,658.26
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Solution
The fourth proportional to 861,526.44, 1,292,290.02 and 387,658.26 is: 581,487.55
Step by Step Solution
- Step 1: Write the proportion equation
861,526.44 : 1,292,290.02 = 387,658.26 : x - Step 2: Convert to fraction form
861,526.44/1,292,290.02 = 387,658.26/x - Step 3: Cross multiply
861,526.44x = 1,292,290.02 × 387,658.26 - Step 4: Simplify right side
861,526.44x = 500,966,900,568.57 - Step 5: Solve for x
x = 500,966,900,568.57/861,526.44 - Step 6: Final answer
x = 581,487.55
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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.