Finding the Fourth Proportional to 1,251,121.20, 1,726,550.88 and 678,163.68
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Solution
The fourth proportional to 1,251,121.20, 1,726,550.88 and 678,163.68 is: 935,867.84
Step by Step Solution
- Step 1: Write the proportion equation
1,251,121.20 : 1,726,550.88 = 678,163.68 : x - Step 2: Convert to fraction form
1,251,121.20/1,726,550.88 = 678,163.68/x - Step 3: Cross multiply
1,251,121.20x = 1,726,550.88 × 678,163.68 - Step 4: Simplify right side
1,251,121.20x = 1,170,884,098,488.04 - Step 5: Solve for x
x = 1,170,884,098,488.04/1,251,121.20 - Step 6: Final answer
x = 935,867.84
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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.