Finding the Fourth Proportional to 852,138.20, 1,278,207.30 and 537,987.80
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Solution
The fourth proportional to 852,138.20, 1,278,207.30 and 537,987.80 is: 806,981.70
Step by Step Solution
- Step 1: Write the proportion equation
852,138.20 : 1,278,207.30 = 537,987.80 : x - Step 2: Convert to fraction form
852,138.20/1,278,207.30 = 537,987.80/x - Step 3: Cross multiply
852,138.20x = 1,278,207.30 × 537,987.80 - Step 4: Simplify right side
852,138.20x = 687,659,933,270.94 - Step 5: Solve for x
x = 687,659,933,270.94/852,138.20 - Step 6: Final answer
x = 806,981.70
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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.