Finding the Fourth Proportional to 1,036,691.76, 1,554,932.48 and 278,434.70
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Solution
The fourth proportional to 1,036,691.76, 1,554,932.48 and 278,434.70 is: 417,623.80
Step by Step Solution
- Step 1: Write the proportion equation
1,036,691.76 : 1,554,932.48 = 278,434.70 : x - Step 2: Convert to fraction form
1,036,691.76/1,554,932.48 = 278,434.70/x - Step 3: Cross multiply
1,036,691.76x = 1,554,932.48 × 278,434.70 - Step 4: Simplify right side
1,036,691.76x = 432,947,149,422.22 - Step 5: Solve for x
x = 432,947,149,422.22/1,036,691.76 - Step 6: Final answer
x = 417,623.80
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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.