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Finding the Fourth Proportional to 624,481.08, 861,790.16 and 338,007.28

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Solution

The fourth proportional to 624,481.08, 861,790.16 and 338,007.28 is: 466,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,481.08 : 861,790.16 = 338,007.28 : x
  2. Step 2: Convert to fraction form
    624,481.08/861,790.16 = 338,007.28/x
  3. Step 3: Cross multiply
    624,481.08x = 861,790.16 × 338,007.28
  4. Step 4: Simplify right side
    624,481.08x = 291,291,347,912.37
  5. Step 5: Solve for x
    x = 291,291,347,912.37/624,481.08
  6. Step 6: Final answer
    x = 466,453.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.