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Finding the Fourth Proportional to 324,494.72, 485,557.92 and 191,438.72

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Solution

The fourth proportional to 324,494.72, 485,557.92 and 191,438.72 is: 286,459.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,494.72 : 485,557.92 = 191,438.72 : x
  2. Step 2: Convert to fraction form
    324,494.72/485,557.92 = 191,438.72/x
  3. Step 3: Cross multiply
    324,494.72x = 485,557.92 × 191,438.72
  4. Step 4: Simplify right side
    324,494.72x = 92,954,586,690.66
  5. Step 5: Solve for x
    x = 92,954,586,690.66/324,494.72
  6. Step 6: Final answer
    x = 286,459.47

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