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Finding the Fourth Proportional to 396,015.40, 594,023.10 and 238,421.80

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Solution

The fourth proportional to 396,015.40, 594,023.10 and 238,421.80 is: 357,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,015.40 : 594,023.10 = 238,421.80 : x
  2. Step 2: Convert to fraction form
    396,015.40/594,023.10 = 238,421.80/x
  3. Step 3: Cross multiply
    396,015.40x = 594,023.10 × 238,421.80
  4. Step 4: Simplify right side
    396,015.40x = 141,628,056,743.58
  5. Step 5: Solve for x
    x = 141,628,056,743.58/396,015.40
  6. Step 6: Final answer
    x = 357,632.70

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