Home / 422,719.52-583,357.56-231,728.72

Finding the Fourth Proportional to 422,719.52, 583,357.56 and 231,728.72

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Solution

The fourth proportional to 422,719.52, 583,357.56 and 231,728.72 is: 319,788.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,719.52 : 583,357.56 = 231,728.72 : x
  2. Step 2: Convert to fraction form
    422,719.52/583,357.56 = 231,728.72/x
  3. Step 3: Cross multiply
    422,719.52x = 583,357.56 × 231,728.72
  4. Step 4: Simplify right side
    422,719.52x = 135,180,700,681.12
  5. Step 5: Solve for x
    x = 135,180,700,681.12/422,719.52
  6. Step 6: Final answer
    x = 319,788.17

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1.5x scale

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.