Finding the Fourth Proportional to 1,382,381.43, 2,073,854.39 and 783,609.99
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Solution
The fourth proportional to 1,382,381.43, 2,073,854.39 and 783,609.99 is: 1,175,574.97
Step by Step Solution
- Step 1: Write the proportion equation
1,382,381.43 : 2,073,854.39 = 783,609.99 : x - Step 2: Convert to fraction form
1,382,381.43/2,073,854.39 = 783,609.99/x - Step 3: Cross multiply
1,382,381.43x = 2,073,854.39 × 783,609.99 - Step 4: Simplify right side
1,382,381.43x = 1,625,093,013,891.31 - Step 5: Solve for x
x = 1,625,093,013,891.31/1,382,381.43 - Step 6: Final answer
x = 1,175,574.97
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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.