Finding the Fourth Proportional to 2,163,691.20, 2,982,429.50 and 1,465,759.70
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Solution
The fourth proportional to 2,163,691.20, 2,982,429.50 and 1,465,759.70 is: 2,020,401.51
Step by Step Solution
- Step 1: Write the proportion equation
2,163,691.20 : 2,982,429.50 = 1,465,759.70 : x - Step 2: Convert to fraction form
2,163,691.20/2,982,429.50 = 1,465,759.70/x - Step 3: Cross multiply
2,163,691.20x = 2,982,429.50 × 1,465,759.70 - Step 4: Simplify right side
2,163,691.20x = 4,371,524,969,191.15 - Step 5: Solve for x
x = 4,371,524,969,191.15/2,163,691.20 - Step 6: Final answer
x = 2,020,401.51
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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.