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Finding the Fourth Proportional to 647,109.60, 970,664.40 and 226,330.80

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Solution

The fourth proportional to 647,109.60, 970,664.40 and 226,330.80 is: 339,496.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,109.60 : 970,664.40 = 226,330.80 : x
  2. Step 2: Convert to fraction form
    647,109.60/970,664.40 = 226,330.80/x
  3. Step 3: Cross multiply
    647,109.60x = 970,664.40 × 226,330.80
  4. Step 4: Simplify right side
    647,109.60x = 219,691,250,183.52
  5. Step 5: Solve for x
    x = 219,691,250,183.52/647,109.60
  6. Step 6: Final answer
    x = 339,496.20

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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.