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Finding the Fourth Proportional to 631,901.20, 947,851.80 and 627,964.60

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Solution

The fourth proportional to 631,901.20, 947,851.80 and 627,964.60 is: 941,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,901.20 : 947,851.80 = 627,964.60 : x
  2. Step 2: Convert to fraction form
    631,901.20/947,851.80 = 627,964.60/x
  3. Step 3: Cross multiply
    631,901.20x = 947,851.80 × 627,964.60
  4. Step 4: Simplify right side
    631,901.20x = 595,217,376,446.28
  5. Step 5: Solve for x
    x = 595,217,376,446.28/631,901.20
  6. Step 6: Final answer
    x = 941,946.90

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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.