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Finding the Fourth Proportional to 627,640.68, 941,164.56 and 228,002.88

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Solution

The fourth proportional to 627,640.68, 941,164.56 and 228,002.88 is: 341,896.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,640.68 : 941,164.56 = 228,002.88 : x
  2. Step 2: Convert to fraction form
    627,640.68/941,164.56 = 228,002.88/x
  3. Step 3: Cross multiply
    627,640.68x = 941,164.56 × 228,002.88
  4. Step 4: Simplify right side
    627,640.68x = 214,588,230,233.93
  5. Step 5: Solve for x
    x = 214,588,230,233.93/627,640.68
  6. Step 6: Final answer
    x = 341,896.63

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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.