Home / 422,379.69-582,884.56-228,789.50

Finding the Fourth Proportional to 422,379.69, 582,884.56 and 228,789.50

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Solution

The fourth proportional to 422,379.69, 582,884.56 and 228,789.50 is: 315,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,379.69 : 582,884.56 = 228,789.50 : x
  2. Step 2: Convert to fraction form
    422,379.69/582,884.56 = 228,789.50/x
  3. Step 3: Cross multiply
    422,379.69x = 582,884.56 × 228,789.50
  4. Step 4: Simplify right side
    422,379.69x = 133,357,867,971.00
  5. Step 5: Solve for x
    x = 133,357,867,971.00/422,379.69
  6. Step 6: Final answer
    x = 315,729.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.