Home / 683,410.40-1,025,115.60-447,480.80

Finding the Fourth Proportional to 683,410.40, 1,025,115.60 and 447,480.80

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Solution

The fourth proportional to 683,410.40, 1,025,115.60 and 447,480.80 is: 671,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,410.40 : 1,025,115.60 = 447,480.80 : x
  2. Step 2: Convert to fraction form
    683,410.40/1,025,115.60 = 447,480.80/x
  3. Step 3: Cross multiply
    683,410.40x = 1,025,115.60 × 447,480.80
  4. Step 4: Simplify right side
    683,410.40x = 458,719,548,780.48
  5. Step 5: Solve for x
    x = 458,719,548,780.48/683,410.40
  6. Step 6: Final answer
    x = 671,221.20

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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.