Finding the Fourth Proportional to 1,991,733.47, 2,981,787.17 and 1,481,661.08
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Solution
The fourth proportional to 1,991,733.47, 2,981,787.17 and 1,481,661.08 is: 2,218,167.27
Step by Step Solution
- Step 1: Write the proportion equation
1,991,733.47 : 2,981,787.17 = 1,481,661.08 : x - Step 2: Convert to fraction form
1,991,733.47/2,981,787.17 = 1,481,661.08/x - Step 3: Cross multiply
1,991,733.47x = 2,981,787.17 × 1,481,661.08 - Step 4: Simplify right side
1,991,733.47x = 4,417,997,976,315.10 - Step 5: Solve for x
x = 4,417,997,976,315.10/1,991,733.47 - Step 6: Final answer
x = 2,218,167.27
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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.