Finding the Fourth Proportional to 861,772.62, 1,292,812.92 and 293,124.66
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Solution
The fourth proportional to 861,772.62, 1,292,812.92 and 293,124.66 is: 439,739.37
Step by Step Solution
- Step 1: Write the proportion equation
861,772.62 : 1,292,812.92 = 293,124.66 : x - Step 2: Convert to fraction form
861,772.62/1,292,812.92 = 293,124.66/x - Step 3: Cross multiply
861,772.62x = 1,292,812.92 × 293,124.66 - Step 4: Simplify right side
861,772.62x = 378,955,347,618.61 - Step 5: Solve for x
x = 378,955,347,618.61/861,772.62 - Step 6: Final answer
x = 439,739.37
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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.