Home / 422,288.06-633,493.92-122,729.72

Finding the Fourth Proportional to 422,288.06, 633,493.92 and 122,729.72

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Solution

The fourth proportional to 422,288.06, 633,493.92 and 122,729.72 is: 184,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,288.06 : 633,493.92 = 122,729.72 : x
  2. Step 2: Convert to fraction form
    422,288.06/633,493.92 = 122,729.72/x
  3. Step 3: Cross multiply
    422,288.06x = 633,493.92 × 122,729.72
  4. Step 4: Simplify right side
    422,288.06x = 77,748,531,423.30
  5. Step 5: Solve for x
    x = 77,748,531,423.30/422,288.06
  6. Step 6: Final answer
    x = 184,112.55

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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.