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Finding the Fourth Proportional to 647,797.10, 971,697.26 and 332,081.78

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Solution

The fourth proportional to 647,797.10, 971,697.26 and 332,081.78 is: 498,123.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,797.10 : 971,697.26 = 332,081.78 : x
  2. Step 2: Convert to fraction form
    647,797.10/971,697.26 = 332,081.78/x
  3. Step 3: Cross multiply
    647,797.10x = 971,697.26 × 332,081.78
  4. Step 4: Simplify right side
    647,797.10x = 322,682,951,693.64
  5. Step 5: Solve for x
    x = 322,682,951,693.64/647,797.10
  6. Step 6: Final answer
    x = 498,123.49

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.