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Finding the Fourth Proportional to 646,851.60, 970,277.40 and 488,221.20

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Solution

The fourth proportional to 646,851.60, 970,277.40 and 488,221.20 is: 732,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,851.60 : 970,277.40 = 488,221.20 : x
  2. Step 2: Convert to fraction form
    646,851.60/970,277.40 = 488,221.20/x
  3. Step 3: Cross multiply
    646,851.60x = 970,277.40 × 488,221.20
  4. Step 4: Simplify right side
    646,851.60x = 473,709,996,560.88
  5. Step 5: Solve for x
    x = 473,709,996,560.88/646,851.60
  6. Step 6: Final answer
    x = 732,331.80

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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.