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Finding the Fourth Proportional to 413,620.60, 619,774.80 and 273,215.20

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Solution

The fourth proportional to 413,620.60, 619,774.80 and 273,215.20 is: 409,389.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,620.60 : 619,774.80 = 273,215.20 : x
  2. Step 2: Convert to fraction form
    413,620.60/619,774.80 = 273,215.20/x
  3. Step 3: Cross multiply
    413,620.60x = 619,774.80 × 273,215.20
  4. Step 4: Simplify right side
    413,620.60x = 169,331,895,936.96
  5. Step 5: Solve for x
    x = 169,331,895,936.96/413,620.60
  6. Step 6: Final answer
    x = 409,389.42

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