Finding the Fourth Proportional to 3,419,107.20, 5,128,660.80 and 3,088,432.80
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Solution
The fourth proportional to 3,419,107.20, 5,128,660.80 and 3,088,432.80 is: 4,632,649.20
Step by Step Solution
- Step 1: Write the proportion equation
3,419,107.20 : 5,128,660.80 = 3,088,432.80 : x - Step 2: Convert to fraction form
3,419,107.20/5,128,660.80 = 3,088,432.80/x - Step 3: Cross multiply
3,419,107.20x = 5,128,660.80 × 3,088,432.80 - Step 4: Simplify right side
3,419,107.20x = 15,839,524,234,794.24 - Step 5: Solve for x
x = 15,839,524,234,794.24/3,419,107.20 - Step 6: Final answer
x = 4,632,649.20
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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.