Finding the Fourth Proportional to 3,420,721.10, 5,129,872.05 and 1,176,337.10
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Solution
The fourth proportional to 3,420,721.10, 5,129,872.05 and 1,176,337.10 is: 1,764,089.69
Step by Step Solution
- Step 1: Write the proportion equation
3,420,721.10 : 5,129,872.05 = 1,176,337.10 : x - Step 2: Convert to fraction form
3,420,721.10/5,129,872.05 = 1,176,337.10/x - Step 3: Cross multiply
3,420,721.10x = 5,129,872.05 × 1,176,337.10 - Step 4: Simplify right side
3,420,721.10x = 6,034,458,810,668.06 - Step 5: Solve for x
x = 6,034,458,810,668.06/3,420,721.10 - Step 6: Final answer
x = 1,764,089.69
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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.