Finding the Fourth Proportional to 2,173,414.80, 3,260,122.20 and 1,275,286.80
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Solution
The fourth proportional to 2,173,414.80, 3,260,122.20 and 1,275,286.80 is: 1,912,930.20
Step by Step Solution
- Step 1: Write the proportion equation
2,173,414.80 : 3,260,122.20 = 1,275,286.80 : x - Step 2: Convert to fraction form
2,173,414.80/3,260,122.20 = 1,275,286.80/x - Step 3: Cross multiply
2,173,414.80x = 3,260,122.20 × 1,275,286.80 - Step 4: Simplify right side
2,173,414.80x = 4,157,590,808,046.96 - Step 5: Solve for x
x = 4,157,590,808,046.96/2,173,414.80 - Step 6: Final answer
x = 1,912,930.20
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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.