Finding the Fourth Proportional to 489,122.20, 733,318.80 and 252,634.60
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Solution
The fourth proportional to 489,122.20, 733,318.80 and 252,634.60 is: 378,763.63
Step by Step Solution
- Step 1: Write the proportion equation
489,122.20 : 733,318.80 = 252,634.60 : x - Step 2: Convert to fraction form
489,122.20/733,318.80 = 252,634.60/x - Step 3: Cross multiply
489,122.20x = 733,318.80 × 252,634.60 - Step 4: Simplify right side
489,122.20x = 185,261,701,710.48 - Step 5: Solve for x
x = 185,261,701,710.48/489,122.20 - Step 6: Final answer
x = 378,763.63
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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.