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Finding the Fourth Proportional to 647,115.70, 970,673.55 and 332,187.70

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Solution

The fourth proportional to 647,115.70, 970,673.55 and 332,187.70 is: 498,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,115.70 : 970,673.55 = 332,187.70 : x
  2. Step 2: Convert to fraction form
    647,115.70/970,673.55 = 332,187.70/x
  3. Step 3: Cross multiply
    647,115.70x = 970,673.55 × 332,187.70
  4. Step 4: Simplify right side
    647,115.70x = 322,445,814,025.34
  5. Step 5: Solve for x
    x = 322,445,814,025.34/647,115.70
  6. Step 6: Final answer
    x = 498,281.55

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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.