Finding the Fourth Proportional to 548,125.20, 821,531.70 and 281,748.60
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Solution
The fourth proportional to 548,125.20, 821,531.70 and 281,748.60 is: 422,285.65
Step by Step Solution
- Step 1: Write the proportion equation
548,125.20 : 821,531.70 = 281,748.60 : x - Step 2: Convert to fraction form
548,125.20/821,531.70 = 281,748.60/x - Step 3: Cross multiply
548,125.20x = 821,531.70 × 281,748.60 - Step 4: Simplify right side
548,125.20x = 231,465,406,330.62 - Step 5: Solve for x
x = 231,465,406,330.62/548,125.20 - Step 6: Final answer
x = 422,285.65
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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.