Finding the Fourth Proportional to 3,864,862.80, 5,797,294.20 and 3,687,715.80
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Solution
The fourth proportional to 3,864,862.80, 5,797,294.20 and 3,687,715.80 is: 5,531,573.70
Step by Step Solution
- Step 1: Write the proportion equation
3,864,862.80 : 5,797,294.20 = 3,687,715.80 : x - Step 2: Convert to fraction form
3,864,862.80/5,797,294.20 = 3,687,715.80/x - Step 3: Cross multiply
3,864,862.80x = 5,797,294.20 × 3,687,715.80 - Step 4: Simplify right side
3,864,862.80x = 21,378,773,418,588.36 - Step 5: Solve for x
x = 21,378,773,418,588.36/3,864,862.80 - Step 6: Final answer
x = 5,531,573.70
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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.