Finding the Fourth Proportional to 1,253,531.30, 1,729,914.57 and 709,655.99
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Solution
The fourth proportional to 1,253,531.30, 1,729,914.57 and 709,655.99 is: 979,348.69
Step by Step Solution
- Step 1: Write the proportion equation
1,253,531.30 : 1,729,914.57 = 709,655.99 : x - Step 2: Convert to fraction form
1,253,531.30/1,729,914.57 = 709,655.99/x - Step 3: Cross multiply
1,253,531.30x = 1,729,914.57 × 709,655.99 - Step 4: Simplify right side
1,253,531.30x = 1,227,644,228,139.20 - Step 5: Solve for x
x = 1,227,644,228,139.20/1,253,531.30 - Step 6: Final answer
x = 979,348.69
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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.