Finding the Fourth Proportional to 2,639,744.13, 3,642,846.90 and 1,432,520.13
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Solution
The fourth proportional to 2,639,744.13, 3,642,846.90 and 1,432,520.13 is: 1,976,877.78
Step by Step Solution
- Step 1: Write the proportion equation
2,639,744.13 : 3,642,846.90 = 1,432,520.13 : x - Step 2: Convert to fraction form
2,639,744.13/3,642,846.90 = 1,432,520.13/x - Step 3: Cross multiply
2,639,744.13x = 3,642,846.90 × 1,432,520.13 - Step 4: Simplify right side
2,639,744.13x = 5,218,451,514,758.10 - Step 5: Solve for x
x = 5,218,451,514,758.10/2,639,744.13 - Step 6: Final answer
x = 1,976,877.78
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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.