Finding the Fourth Proportional to 513,079.20, 768,306.60 and 379,234.80
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Solution
The fourth proportional to 513,079.20, 768,306.60 and 379,234.80 is: 567,882.31
Step by Step Solution
- Step 1: Write the proportion equation
513,079.20 : 768,306.60 = 379,234.80 : x - Step 2: Convert to fraction form
513,079.20/768,306.60 = 379,234.80/x - Step 3: Cross multiply
513,079.20x = 768,306.60 × 379,234.80 - Step 4: Simplify right side
513,079.20x = 291,368,599,789.68 - Step 5: Solve for x
x = 291,368,599,789.68/513,079.20 - Step 6: Final answer
x = 567,882.31
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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.