Finding the Fourth Proportional to 905,170.60, 1,357,755.90 and 274,115.80
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Solution
The fourth proportional to 905,170.60, 1,357,755.90 and 274,115.80 is: 411,173.70
Step by Step Solution
- Step 1: Write the proportion equation
905,170.60 : 1,357,755.90 = 274,115.80 : x - Step 2: Convert to fraction form
905,170.60/1,357,755.90 = 274,115.80/x - Step 3: Cross multiply
905,170.60x = 1,357,755.90 × 274,115.80 - Step 4: Simplify right side
905,170.60x = 372,182,344,733.22 - Step 5: Solve for x
x = 372,182,344,733.22/905,170.60 - Step 6: Final answer
x = 411,173.70
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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.