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Finding the Fourth Proportional to 396,850.74, 547,281.03 and 306,062.90

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Solution

The fourth proportional to 396,850.74, 547,281.03 and 306,062.90 is: 422,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,850.74 : 547,281.03 = 306,062.90 : x
  2. Step 2: Convert to fraction form
    396,850.74/547,281.03 = 306,062.90/x
  3. Step 3: Cross multiply
    396,850.74x = 547,281.03 × 306,062.90
  4. Step 4: Simplify right side
    396,850.74x = 167,502,421,838.08
  5. Step 5: Solve for x
    x = 167,502,421,838.08/396,850.74
  6. Step 6: Final answer
    x = 422,079.15

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