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Finding the Fourth Proportional to 647,079.60, 970,619.40 and 488,449.20

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Solution

The fourth proportional to 647,079.60, 970,619.40 and 488,449.20 is: 732,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,079.60 : 970,619.40 = 488,449.20 : x
  2. Step 2: Convert to fraction form
    647,079.60/970,619.40 = 488,449.20/x
  3. Step 3: Cross multiply
    647,079.60x = 970,619.40 × 488,449.20
  4. Step 4: Simplify right side
    647,079.60x = 474,098,269,434.48
  5. Step 5: Solve for x
    x = 474,098,269,434.48/647,079.60
  6. Step 6: Final answer
    x = 732,673.80

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Similar ratio
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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.