Finding the Fourth Proportional to 2,123,715.12, 2,930,730.84 and 1,264,305.12
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Solution
The fourth proportional to 2,123,715.12, 2,930,730.84 and 1,264,305.12 is: 1,744,743.43
Step by Step Solution
- Step 1: Write the proportion equation
2,123,715.12 : 2,930,730.84 = 1,264,305.12 : x - Step 2: Convert to fraction form
2,123,715.12/2,930,730.84 = 1,264,305.12/x - Step 3: Cross multiply
2,123,715.12x = 2,930,730.84 × 1,264,305.12 - Step 4: Simplify right side
2,123,715.12x = 3,705,338,006,353.90 - Step 5: Solve for x
x = 3,705,338,006,353.90/2,123,715.12 - Step 6: Final answer
x = 1,744,743.43
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1.5x scale
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.