Finding the Fourth Proportional to 418,990.14, 628,491.08 and 119,470.85
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Solution
The fourth proportional to 418,990.14, 628,491.08 and 119,470.85 is: 179,207.94
Step by Step Solution
- Step 1: Write the proportion equation
418,990.14 : 628,491.08 = 119,470.85 : x - Step 2: Convert to fraction form
418,990.14/628,491.08 = 119,470.85/x - Step 3: Cross multiply
418,990.14x = 628,491.08 × 119,470.85 - Step 4: Simplify right side
418,990.14x = 75,086,359,805.21 - Step 5: Solve for x
x = 75,086,359,805.21/418,990.14 - Step 6: Final answer
x = 179,207.94
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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.