Home / 422,308.10-582,782.28-228,711.35

Finding the Fourth Proportional to 422,308.10, 582,782.28 and 228,711.35

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Solution

The fourth proportional to 422,308.10, 582,782.28 and 228,711.35 is: 315,620.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,308.10 : 582,782.28 = 228,711.35 : x
  2. Step 2: Convert to fraction form
    422,308.10/582,782.28 = 228,711.35/x
  3. Step 3: Cross multiply
    422,308.10x = 582,782.28 × 228,711.35
  4. Step 4: Simplify right side
    422,308.10x = 133,288,922,014.88
  5. Step 5: Solve for x
    x = 133,288,922,014.88/422,308.10
  6. Step 6: Final answer
    x = 315,620.09

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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.