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Finding the Fourth Proportional to 703,622.80, 970,996.98 and 381,340.72

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Solution

The fourth proportional to 703,622.80, 970,996.98 and 381,340.72 is: 526,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,622.80 : 970,996.98 = 381,340.72 : x
  2. Step 2: Convert to fraction form
    703,622.80/970,996.98 = 381,340.72/x
  3. Step 3: Cross multiply
    703,622.80x = 970,996.98 × 381,340.72
  4. Step 4: Simplify right side
    703,622.80x = 370,280,687,471.03
  5. Step 5: Solve for x
    x = 370,280,687,471.03/703,622.80
  6. Step 6: Final answer
    x = 526,248.85

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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.