Finding the Fourth Proportional to 486,964.20, 730,482.98 and 145,380.62
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Solution
The fourth proportional to 486,964.20, 730,482.98 and 145,380.62 is: 218,081.88
Step by Step Solution
- Step 1: Write the proportion equation
486,964.20 : 730,482.98 = 145,380.62 : x - Step 2: Convert to fraction form
486,964.20/730,482.98 = 145,380.62/x - Step 3: Cross multiply
486,964.20x = 730,482.98 × 145,380.62 - Step 4: Simplify right side
486,964.20x = 106,198,068,531.85 - Step 5: Solve for x
x = 106,198,068,531.85/486,964.20 - Step 6: Final answer
x = 218,081.88
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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.