Home / 853,350.32-1,279,273.97-348,335.78

Finding the Fourth Proportional to 853,350.32, 1,279,273.97 and 348,335.78

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Solution

The fourth proportional to 853,350.32, 1,279,273.97 and 348,335.78 is: 522,196.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,350.32 : 1,279,273.97 = 348,335.78 : x
  2. Step 2: Convert to fraction form
    853,350.32/1,279,273.97 = 348,335.78/x
  3. Step 3: Cross multiply
    853,350.32x = 1,279,273.97 × 348,335.78
  4. Step 4: Simplify right side
    853,350.32x = 445,616,890,648.12
  5. Step 5: Solve for x
    x = 445,616,890,648.12/853,350.32
  6. Step 6: Final answer
    x = 522,196.90

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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.