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Finding the Fourth Proportional to 647,002.20, 970,503.30 and 292,708.20

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Solution

The fourth proportional to 647,002.20, 970,503.30 and 292,708.20 is: 439,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,002.20 : 970,503.30 = 292,708.20 : x
  2. Step 2: Convert to fraction form
    647,002.20/970,503.30 = 292,708.20/x
  3. Step 3: Cross multiply
    647,002.20x = 970,503.30 × 292,708.20
  4. Step 4: Simplify right side
    647,002.20x = 284,074,274,037.06
  5. Step 5: Solve for x
    x = 284,074,274,037.06/647,002.20
  6. Step 6: Final answer
    x = 439,062.30

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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.