Finding the Fourth Proportional to 2,138,329.11, 3,207,972.41 and 718,346.46
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Solution
The fourth proportional to 2,138,329.11, 3,207,972.41 and 718,346.46 is: 1,077,680.52
Step by Step Solution
- Step 1: Write the proportion equation
2,138,329.11 : 3,207,972.41 = 718,346.46 : x - Step 2: Convert to fraction form
2,138,329.11/3,207,972.41 = 718,346.46/x - Step 3: Cross multiply
2,138,329.11x = 3,207,972.41 × 718,346.46 - Step 4: Simplify right side
2,138,329.11x = 2,304,435,620,909.44 - Step 5: Solve for x
x = 2,304,435,620,909.44/2,138,329.11 - Step 6: Final answer
x = 1,077,680.52
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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.