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Finding the Fourth Proportional to 631,362.60, 947,000.70 and 204,892.20

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Solution

The fourth proportional to 631,362.60, 947,000.70 and 204,892.20 is: 307,324.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,362.60 : 947,000.70 = 204,892.20 : x
  2. Step 2: Convert to fraction form
    631,362.60/947,000.70 = 204,892.20/x
  3. Step 3: Cross multiply
    631,362.60x = 947,000.70 × 204,892.20
  4. Step 4: Simplify right side
    631,362.60x = 194,033,056,824.54
  5. Step 5: Solve for x
    x = 194,033,056,824.54/631,362.60
  6. Step 6: Final answer
    x = 307,324.28

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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.