Finding the Fourth Proportional to 1,981,724.49, 2,734,785.09 and 1,165,958.91
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Solution
The fourth proportional to 1,981,724.49, 2,734,785.09 and 1,165,958.91 is: 1,609,026.41
Step by Step Solution
- Step 1: Write the proportion equation
1,981,724.49 : 2,734,785.09 = 1,165,958.91 : x - Step 2: Convert to fraction form
1,981,724.49/2,734,785.09 = 1,165,958.91/x - Step 3: Cross multiply
1,981,724.49x = 2,734,785.09 × 1,165,958.91 - Step 4: Simplify right side
1,981,724.49x = 3,188,647,042,620.65 - Step 5: Solve for x
x = 3,188,647,042,620.65/1,981,724.49 - Step 6: Final answer
x = 1,609,026.41
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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.