Home / 422,307.12-582,788.88-231,328.56

Finding the Fourth Proportional to 422,307.12, 582,788.88 and 231,328.56

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Solution

The fourth proportional to 422,307.12, 582,788.88 and 231,328.56 is: 319,236.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,307.12 : 582,788.88 = 231,328.56 : x
  2. Step 2: Convert to fraction form
    422,307.12/582,788.88 = 231,328.56/x
  3. Step 3: Cross multiply
    422,307.12x = 582,788.88 × 231,328.56
  4. Step 4: Simplify right side
    422,307.12x = 134,815,712,394.41
  5. Step 5: Solve for x
    x = 134,815,712,394.41/422,307.12
  6. Step 6: Final answer
    x = 319,236.18

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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.