Finding the Fourth Proportional to 518,517.20, 777,775.80 and 483,087.80
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Solution
The fourth proportional to 518,517.20, 777,775.80 and 483,087.80 is: 724,631.70
Step by Step Solution
- Step 1: Write the proportion equation
518,517.20 : 777,775.80 = 483,087.80 : x - Step 2: Convert to fraction form
518,517.20/777,775.80 = 483,087.80/x - Step 3: Cross multiply
518,517.20x = 777,775.80 × 483,087.80 - Step 4: Simplify right side
518,517.20x = 375,734,000,115.24 - Step 5: Solve for x
x = 375,734,000,115.24/518,517.20 - Step 6: Final answer
x = 724,631.70
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Similar ratio
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1.5x scale
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.