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Finding the Fourth Proportional to 647,204.40, 970,806.60 and 363,769.20

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Solution

The fourth proportional to 647,204.40, 970,806.60 and 363,769.20 is: 545,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,204.40 : 970,806.60 = 363,769.20 : x
  2. Step 2: Convert to fraction form
    647,204.40/970,806.60 = 363,769.20/x
  3. Step 3: Cross multiply
    647,204.40x = 970,806.60 × 363,769.20
  4. Step 4: Simplify right side
    647,204.40x = 353,149,540,236.72
  5. Step 5: Solve for x
    x = 353,149,540,236.72/647,204.40
  6. Step 6: Final answer
    x = 545,653.80

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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.