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Finding the Fourth Proportional to 396,109.76, 593,927.40 and 126,121.28

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Solution

The fourth proportional to 396,109.76, 593,927.40 and 126,121.28 is: 189,106.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,109.76 : 593,927.40 = 126,121.28 : x
  2. Step 2: Convert to fraction form
    396,109.76/593,927.40 = 126,121.28/x
  3. Step 3: Cross multiply
    396,109.76x = 593,927.40 × 126,121.28
  4. Step 4: Simplify right side
    396,109.76x = 74,906,883,915.07
  5. Step 5: Solve for x
    x = 74,906,883,915.07/396,109.76
  6. Step 6: Final answer
    x = 189,106.38

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