Finding the Fourth Proportional to 2,138,340.92, 3,207,123.88 and 858,896.70
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Solution
The fourth proportional to 2,138,340.92, 3,207,123.88 and 858,896.70 is: 1,288,189.40
Step by Step Solution
- Step 1: Write the proportion equation
2,138,340.92 : 3,207,123.88 = 858,896.70 : x - Step 2: Convert to fraction form
2,138,340.92/3,207,123.88 = 858,896.70/x - Step 3: Cross multiply
2,138,340.92x = 3,207,123.88 × 858,896.70 - Step 4: Simplify right side
2,138,340.92x = 2,754,588,117,023.20 - Step 5: Solve for x
x = 2,754,588,117,023.20/2,138,340.92 - Step 6: Final answer
x = 1,288,189.40
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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.