Finding the Fourth Proportional to 394,469.40, 591,704.10 and 252,751.80
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Solution
The fourth proportional to 394,469.40, 591,704.10 and 252,751.80 is: 379,127.70
Step by Step Solution
- Step 1: Write the proportion equation
394,469.40 : 591,704.10 = 252,751.80 : x - Step 2: Convert to fraction form
394,469.40/591,704.10 = 252,751.80/x - Step 3: Cross multiply
394,469.40x = 591,704.10 × 252,751.80 - Step 4: Simplify right side
394,469.40x = 149,554,276,342.38 - Step 5: Solve for x
x = 149,554,276,342.38/394,469.40 - Step 6: Final answer
x = 379,127.70
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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.