Finding the Fourth Proportional to 861,386.19, 1,292,197.49 and 292,614.61
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Solution
The fourth proportional to 861,386.19, 1,292,197.49 and 292,614.61 is: 438,962.07
Step by Step Solution
- Step 1: Write the proportion equation
861,386.19 : 1,292,197.49 = 292,614.61 : x - Step 2: Convert to fraction form
861,386.19/1,292,197.49 = 292,614.61/x - Step 3: Cross multiply
861,386.19x = 1,292,197.49 × 292,614.61 - Step 4: Simplify right side
861,386.19x = 378,115,863,116.26 - Step 5: Solve for x
x = 378,115,863,116.26/861,386.19 - Step 6: Final answer
x = 438,962.07
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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.