Finding the Fourth Proportional to 1,418,682.28, 2,129,158.24 and 745,160.78
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Solution
The fourth proportional to 1,418,682.28, 2,129,158.24 and 745,160.78 is: 1,118,337.23
Step by Step Solution
- Step 1: Write the proportion equation
1,418,682.28 : 2,129,158.24 = 745,160.78 : x - Step 2: Convert to fraction form
1,418,682.28/2,129,158.24 = 745,160.78/x - Step 3: Cross multiply
1,418,682.28x = 2,129,158.24 × 745,160.78 - Step 4: Simplify right side
1,418,682.28x = 1,586,565,202,353.13 - Step 5: Solve for x
x = 1,586,565,202,353.13/1,418,682.28 - Step 6: Final answer
x = 1,118,337.23
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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.