Finding the Fourth Proportional to 2,190,445.20, 3,281,206.14 and 1,787,074.92
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Solution
The fourth proportional to 2,190,445.20, 3,281,206.14 and 1,787,074.92 is: 2,676,972.33
Step by Step Solution
- Step 1: Write the proportion equation
2,190,445.20 : 3,281,206.14 = 1,787,074.92 : x - Step 2: Convert to fraction form
2,190,445.20/3,281,206.14 = 1,787,074.92/x - Step 3: Cross multiply
2,190,445.20x = 3,281,206.14 × 1,787,074.92 - Step 4: Simplify right side
2,190,445.20x = 5,863,761,200,144.01 - Step 5: Solve for x
x = 5,863,761,200,144.01/2,190,445.20 - Step 6: Final answer
x = 2,676,972.33
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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.