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Finding the Fourth Proportional to 703,351.20, 970,623.36 and 381,069.30

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Solution

The fourth proportional to 703,351.20, 970,623.36 and 381,069.30 is: 525,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,351.20 : 970,623.36 = 381,069.30 : x
  2. Step 2: Convert to fraction form
    703,351.20/970,623.36 = 381,069.30/x
  3. Step 3: Cross multiply
    703,351.20x = 970,623.36 × 381,069.30
  4. Step 4: Simplify right side
    703,351.20x = 369,874,764,358.85
  5. Step 5: Solve for x
    x = 369,874,764,358.85/703,351.20
  6. Step 6: Final answer
    x = 525,874.93

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Double scale
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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.