Finding the Fourth Proportional to 1,283,915.26, 1,771,781.27 and 710,943.13
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Solution
The fourth proportional to 1,283,915.26, 1,771,781.27 and 710,943.13 is: 981,089.45
Step by Step Solution
- Step 1: Write the proportion equation
1,283,915.26 : 1,771,781.27 = 710,943.13 : x - Step 2: Convert to fraction form
1,283,915.26/1,771,781.27 = 710,943.13/x - Step 3: Cross multiply
1,283,915.26x = 1,771,781.27 × 710,943.13 - Step 4: Simplify right side
1,283,915.26x = 1,259,635,712,462.44 - Step 5: Solve for x
x = 1,259,635,712,462.44/1,283,915.26 - Step 6: Final answer
x = 981,089.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.