Finding the Fourth Proportional to 852,449.46, 1,278,884.68 and 253,408.08
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Solution
The fourth proportional to 852,449.46, 1,278,884.68 and 253,408.08 is: 380,174.69
Step by Step Solution
- Step 1: Write the proportion equation
852,449.46 : 1,278,884.68 = 253,408.08 : x - Step 2: Convert to fraction form
852,449.46/1,278,884.68 = 253,408.08/x - Step 3: Cross multiply
852,449.46x = 1,278,884.68 × 253,408.08 - Step 4: Simplify right side
852,449.46x = 324,079,711,300.21 - Step 5: Solve for x
x = 324,079,711,300.21/852,449.46 - Step 6: Final answer
x = 380,174.69
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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.