Home / 853,349.28-1,279,003.32-379,499.28

Finding the Fourth Proportional to 853,349.28, 1,279,003.32 and 379,499.28

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Solution

The fourth proportional to 853,349.28, 1,279,003.32 and 379,499.28 is: 568,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,349.28 : 1,279,003.32 = 379,499.28 : x
  2. Step 2: Convert to fraction form
    853,349.28/1,279,003.32 = 379,499.28/x
  3. Step 3: Cross multiply
    853,349.28x = 1,279,003.32 × 379,499.28
  4. Step 4: Simplify right side
    853,349.28x = 485,380,839,057.61
  5. Step 5: Solve for x
    x = 485,380,839,057.61/853,349.28
  6. Step 6: Final answer
    x = 568,795.04

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Double scale
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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.