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Finding the Fourth Proportional to 647,025.60, 969,809.40 and 310,227.60

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Solution

The fourth proportional to 647,025.60, 969,809.40 and 310,227.60 is: 464,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,025.60 : 969,809.40 = 310,227.60 : x
  2. Step 2: Convert to fraction form
    647,025.60/969,809.40 = 310,227.60/x
  3. Step 3: Cross multiply
    647,025.60x = 969,809.40 × 310,227.60
  4. Step 4: Simplify right side
    647,025.60x = 300,861,642,619.44
  5. Step 5: Solve for x
    x = 300,861,642,619.44/647,025.60
  6. Step 6: Final answer
    x = 464,991.87

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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.