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Finding the Fourth Proportional to 396,801.42, 547,592.51 and 215,513.49

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Solution

The fourth proportional to 396,801.42, 547,592.51 and 215,513.49 is: 297,412.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,801.42 : 547,592.51 = 215,513.49 : x
  2. Step 2: Convert to fraction form
    396,801.42/547,592.51 = 215,513.49/x
  3. Step 3: Cross multiply
    396,801.42x = 547,592.51 × 215,513.49
  4. Step 4: Simplify right side
    396,801.42x = 118,013,572,927.96
  5. Step 5: Solve for x
    x = 118,013,572,927.96/396,801.42
  6. Step 6: Final answer
    x = 297,412.17

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