Finding the Fourth Proportional to 2,080,863.70, 3,120,517.95 and 818,430.10
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Solution
The fourth proportional to 2,080,863.70, 3,120,517.95 and 818,430.10 is: 1,227,339.31
Step by Step Solution
- Step 1: Write the proportion equation
2,080,863.70 : 3,120,517.95 = 818,430.10 : x - Step 2: Convert to fraction form
2,080,863.70/3,120,517.95 = 818,430.10/x - Step 3: Cross multiply
2,080,863.70x = 3,120,517.95 × 818,430.10 - Step 4: Simplify right side
2,080,863.70x = 2,553,925,817,870.30 - Step 5: Solve for x
x = 2,553,925,817,870.30/2,080,863.70 - Step 6: Final answer
x = 1,227,339.31
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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.