Finding the Fourth Proportional to 1,471,921.80, 2,207,882.70 and 763,333.80
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Solution
The fourth proportional to 1,471,921.80, 2,207,882.70 and 763,333.80 is: 1,145,000.70
Step by Step Solution
- Step 1: Write the proportion equation
1,471,921.80 : 2,207,882.70 = 763,333.80 : x - Step 2: Convert to fraction form
1,471,921.80/2,207,882.70 = 763,333.80/x - Step 3: Cross multiply
1,471,921.80x = 2,207,882.70 × 763,333.80 - Step 4: Simplify right side
1,471,921.80x = 1,685,351,491,345.26 - Step 5: Solve for x
x = 1,685,351,491,345.26/1,471,921.80 - Step 6: Final answer
x = 1,145,000.70
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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.