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Finding the Fourth Proportional to 647,108.20, 970,662.30 and 332,180.20

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Solution

The fourth proportional to 647,108.20, 970,662.30 and 332,180.20 is: 498,270.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,108.20 : 970,662.30 = 332,180.20 : x
  2. Step 2: Convert to fraction form
    647,108.20/970,662.30 = 332,180.20/x
  3. Step 3: Cross multiply
    647,108.20x = 970,662.30 × 332,180.20
  4. Step 4: Simplify right side
    647,108.20x = 322,434,796,946.46
  5. Step 5: Solve for x
    x = 322,434,796,946.46/647,108.20
  6. Step 6: Final answer
    x = 498,270.30

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Double scale
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Similar ratio
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1.5x scale

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.