Finding the Fourth Proportional to 1,126,272.12, 1,553,875.02 and 642,496.92
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Solution
The fourth proportional to 1,126,272.12, 1,553,875.02 and 642,496.92 is: 886,428.69
Step by Step Solution
- Step 1: Write the proportion equation
1,126,272.12 : 1,553,875.02 = 642,496.92 : x - Step 2: Convert to fraction form
1,126,272.12/1,553,875.02 = 642,496.92/x - Step 3: Cross multiply
1,126,272.12x = 1,553,875.02 × 642,496.92 - Step 4: Simplify right side
1,126,272.12x = 998,359,914,414.94 - Step 5: Solve for x
x = 998,359,914,414.94/1,126,272.12 - Step 6: Final answer
x = 886,428.69
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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.