Finding the Fourth Proportional to 2,123,715.62, 2,930,731.53 and 1,264,305.62
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Solution
The fourth proportional to 2,123,715.62, 2,930,731.53 and 1,264,305.62 is: 1,744,744.12
Step by Step Solution
- Step 1: Write the proportion equation
2,123,715.62 : 2,930,731.53 = 1,264,305.62 : x - Step 2: Convert to fraction form
2,123,715.62/2,930,731.53 = 1,264,305.62/x - Step 3: Cross multiply
2,123,715.62x = 2,930,731.53 × 1,264,305.62 - Step 4: Simplify right side
2,123,715.62x = 3,705,340,344,090.20 - Step 5: Solve for x
x = 3,705,340,344,090.20/2,123,715.62 - Step 6: Final answer
x = 1,744,744.12
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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.