Finding the Fourth Proportional to 532,857.40, 799,286.10 and 489,311.80
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Solution
The fourth proportional to 532,857.40, 799,286.10 and 489,311.80 is: 733,967.70
Step by Step Solution
- Step 1: Write the proportion equation
532,857.40 : 799,286.10 = 489,311.80 : x - Step 2: Convert to fraction form
532,857.40/799,286.10 = 489,311.80/x - Step 3: Cross multiply
532,857.40x = 799,286.10 × 489,311.80 - Step 4: Simplify right side
532,857.40x = 391,100,120,305.98 - Step 5: Solve for x
x = 391,100,120,305.98/532,857.40 - Step 6: Final answer
x = 733,967.70
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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.