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Finding the Fourth Proportional to 402,290, 603,962.36 and 269,763.28

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Solution

The fourth proportional to 402,290, 603,962.36 and 269,763.28 is: 404,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,290 : 603,962.36 = 269,763.28 : x
  2. Step 2: Convert to fraction form
    402,290/603,962.36 = 269,763.28/x
  3. Step 3: Cross multiply
    402,290x = 603,962.36 × 269,763.28
  4. Step 4: Simplify right side
    402,290x = 162,926,867,230.14
  5. Step 5: Solve for x
    x = 162,926,867,230.14/402,290
  6. Step 6: Final answer
    x = 404,998.55

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