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Finding the Fourth Proportional to 703,171.24, 970,306.86 and 393,016.60

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Solution

The fourth proportional to 703,171.24, 970,306.86 and 393,016.60 is: 542,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,171.24 : 970,306.86 = 393,016.60 : x
  2. Step 2: Convert to fraction form
    703,171.24/970,306.86 = 393,016.60/x
  3. Step 3: Cross multiply
    703,171.24x = 970,306.86 × 393,016.60
  4. Step 4: Simplify right side
    703,171.24x = 381,346,703,073.88
  5. Step 5: Solve for x
    x = 381,346,703,073.88/703,171.24
  6. Step 6: Final answer
    x = 542,324.09

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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.