Finding the Fourth Proportional to 861,594.91, 1,292,391.74 and 387,726.68
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Solution
The fourth proportional to 861,594.91, 1,292,391.74 and 387,726.68 is: 581,589.75
Step by Step Solution
- Step 1: Write the proportion equation
861,594.91 : 1,292,391.74 = 387,726.68 : x - Step 2: Convert to fraction form
861,594.91/1,292,391.74 = 387,726.68/x - Step 3: Cross multiply
861,594.91x = 1,292,391.74 × 387,726.68 - Step 4: Simplify right side
861,594.91x = 501,094,762,809.92 - Step 5: Solve for x
x = 501,094,762,809.92/861,594.91 - Step 6: Final answer
x = 581,589.75
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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.