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Finding the Fourth Proportional to 884.43, 1,219.11 and 697.62

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Solution

The fourth proportional to 884.43, 1,219.11 and 697.62 is: 961.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.43 : 1,219.11 = 697.62 : x
  2. Step 2: Convert to fraction form
    884.43/1,219.11 = 697.62/x
  3. Step 3: Cross multiply
    884.43x = 1,219.11 × 697.62
  4. Step 4: Simplify right side
    884.43x = 850,475.52
  5. Step 5: Solve for x
    x = 850,475.52/884.43
  6. Step 6: Final answer
    x = 961.61

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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.