Home / 1,008,220.80-1,512,331.20-447,255.30

Finding the Fourth Proportional to 1,008,220.80, 1,512,331.20 and 447,255.30

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Solution

The fourth proportional to 1,008,220.80, 1,512,331.20 and 447,255.30 is: 670,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,220.80 : 1,512,331.20 = 447,255.30 : x
  2. Step 2: Convert to fraction form
    1,008,220.80/1,512,331.20 = 447,255.30/x
  3. Step 3: Cross multiply
    1,008,220.80x = 1,512,331.20 × 447,255.30
  4. Step 4: Simplify right side
    1,008,220.80x = 676,398,144,555.36
  5. Step 5: Solve for x
    x = 676,398,144,555.36/1,008,220.80
  6. Step 6: Final answer
    x = 670,882.95

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Double scale
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Similar ratio
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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.