Finding the Fourth Proportional to 747,121.28, 1,031,142.84 and 441,230.72
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Solution
The fourth proportional to 747,121.28, 1,031,142.84 and 441,230.72 is: 608,966.59
Step by Step Solution
- Step 1: Write the proportion equation
747,121.28 : 1,031,142.84 = 441,230.72 : x - Step 2: Convert to fraction form
747,121.28/1,031,142.84 = 441,230.72/x - Step 3: Cross multiply
747,121.28x = 1,031,142.84 × 441,230.72 - Step 4: Simplify right side
747,121.28x = 454,971,897,716.05 - Step 5: Solve for x
x = 454,971,897,716.05/747,121.28 - Step 6: Final answer
x = 608,966.59
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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.