Finding the Fourth Proportional to 2,080,805.70, 3,120,560.55 and 819,020.10
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Solution
The fourth proportional to 2,080,805.70, 3,120,560.55 and 819,020.10 is: 1,228,275.09
Step by Step Solution
- Step 1: Write the proportion equation
2,080,805.70 : 3,120,560.55 = 819,020.10 : x - Step 2: Convert to fraction form
2,080,805.70/3,120,560.55 = 819,020.10/x - Step 3: Cross multiply
2,080,805.70x = 3,120,560.55 × 819,020.10 - Step 4: Simplify right side
2,080,805.70x = 2,555,801,813,717.05 - Step 5: Solve for x
x = 2,555,801,813,717.05/2,080,805.70 - Step 6: Final answer
x = 1,228,275.09
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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.