Finding the Fourth Proportional to 4,081,538.70, 6,122,956.05 and 1,386,117.90
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Solution
The fourth proportional to 4,081,538.70, 6,122,956.05 and 1,386,117.90 is: 2,079,396.92
Step by Step Solution
- Step 1: Write the proportion equation
4,081,538.70 : 6,122,956.05 = 1,386,117.90 : x - Step 2: Convert to fraction form
4,081,538.70/6,122,956.05 = 1,386,117.90/x - Step 3: Cross multiply
4,081,538.70x = 6,122,956.05 × 1,386,117.90 - Step 4: Simplify right side
4,081,538.70x = 8,487,138,981,818.29 - Step 5: Solve for x
x = 8,487,138,981,818.29/4,081,538.70 - Step 6: Final answer
x = 2,079,396.92
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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.