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Finding the Fourth Proportional to 668,105.78, 922,023.69 and 396,334.58

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Solution

The fourth proportional to 668,105.78, 922,023.69 and 396,334.58 is: 546,964.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,105.78 : 922,023.69 = 396,334.58 : x
  2. Step 2: Convert to fraction form
    668,105.78/922,023.69 = 396,334.58/x
  3. Step 3: Cross multiply
    668,105.78x = 922,023.69 × 396,334.58
  4. Step 4: Simplify right side
    668,105.78x = 365,429,871,926.20
  5. Step 5: Solve for x
    x = 365,429,871,926.20/668,105.78
  6. Step 6: Final answer
    x = 546,964.09

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