Home / 987,200.10-1,480,800.15-277,251.30

Finding the Fourth Proportional to 987,200.10, 1,480,800.15 and 277,251.30

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Solution

The fourth proportional to 987,200.10, 1,480,800.15 and 277,251.30 is: 415,876.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,200.10 : 1,480,800.15 = 277,251.30 : x
  2. Step 2: Convert to fraction form
    987,200.10/1,480,800.15 = 277,251.30/x
  3. Step 3: Cross multiply
    987,200.10x = 1,480,800.15 × 277,251.30
  4. Step 4: Simplify right side
    987,200.10x = 410,553,766,627.70
  5. Step 5: Solve for x
    x = 410,553,766,627.70/987,200.10
  6. Step 6: Final answer
    x = 415,876.95

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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.