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Finding the Fourth Proportional to 396,812.52, 547,537.26 and 243,801.48

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Solution

The fourth proportional to 396,812.52, 547,537.26 and 243,801.48 is: 336,406.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,812.52 : 547,537.26 = 243,801.48 : x
  2. Step 2: Convert to fraction form
    396,812.52/547,537.26 = 243,801.48/x
  3. Step 3: Cross multiply
    396,812.52x = 547,537.26 × 243,801.48
  4. Step 4: Simplify right side
    396,812.52x = 133,490,394,343.15
  5. Step 5: Solve for x
    x = 133,490,394,343.15/396,812.52
  6. Step 6: Final answer
    x = 336,406.71

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1.5x scale

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.