Finding the Fourth Proportional to 2,129,489.40, 3,194,234.10 and 1,417,207.80
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Solution
The fourth proportional to 2,129,489.40, 3,194,234.10 and 1,417,207.80 is: 2,125,811.70
Step by Step Solution
- Step 1: Write the proportion equation
2,129,489.40 : 3,194,234.10 = 1,417,207.80 : x - Step 2: Convert to fraction form
2,129,489.40/3,194,234.10 = 1,417,207.80/x - Step 3: Cross multiply
2,129,489.40x = 3,194,234.10 × 1,417,207.80 - Step 4: Simplify right side
2,129,489.40x = 4,526,893,481,545.98 - Step 5: Solve for x
x = 4,526,893,481,545.98/2,129,489.40 - Step 6: Final answer
x = 2,125,811.70
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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.