Finding the Fourth Proportional to 852,092.10, 1,278,138.15 and 253,145.70
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Solution
The fourth proportional to 852,092.10, 1,278,138.15 and 253,145.70 is: 379,718.55
Step by Step Solution
- Step 1: Write the proportion equation
852,092.10 : 1,278,138.15 = 253,145.70 : x - Step 2: Convert to fraction form
852,092.10/1,278,138.15 = 253,145.70/x - Step 3: Cross multiply
852,092.10x = 1,278,138.15 × 253,145.70 - Step 4: Simplify right side
852,092.10x = 323,555,176,678.46 - Step 5: Solve for x
x = 323,555,176,678.46/852,092.10 - Step 6: Final answer
x = 379,718.55
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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.