Home / 422,888.31-583,585.65-231,905.79

Finding the Fourth Proportional to 422,888.31, 583,585.65 and 231,905.79

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Solution

The fourth proportional to 422,888.31, 583,585.65 and 231,905.79 is: 320,029.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,888.31 : 583,585.65 = 231,905.79 : x
  2. Step 2: Convert to fraction form
    422,888.31/583,585.65 = 231,905.79/x
  3. Step 3: Cross multiply
    422,888.31x = 583,585.65 × 231,905.79
  4. Step 4: Simplify right side
    422,888.31x = 135,336,891,195.91
  5. Step 5: Solve for x
    x = 135,336,891,195.91/422,888.31
  6. Step 6: Final answer
    x = 320,029.87

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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.