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Finding the Fourth Proportional to 631,903.20, 947,854.80 and 627,966.60

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Solution

The fourth proportional to 631,903.20, 947,854.80 and 627,966.60 is: 941,949.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,903.20 : 947,854.80 = 627,966.60 : x
  2. Step 2: Convert to fraction form
    631,903.20/947,854.80 = 627,966.60/x
  3. Step 3: Cross multiply
    631,903.20x = 947,854.80 × 627,966.60
  4. Step 4: Simplify right side
    631,903.20x = 595,221,156,049.68
  5. Step 5: Solve for x
    x = 595,221,156,049.68/631,903.20
  6. Step 6: Final answer
    x = 941,949.90

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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.