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Finding the Fourth Proportional to 578,521.20, 867,522.60 and 262,815.60

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Solution

The fourth proportional to 578,521.20, 867,522.60 and 262,815.60 is: 394,105.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,521.20 : 867,522.60 = 262,815.60 : x
  2. Step 2: Convert to fraction form
    578,521.20/867,522.60 = 262,815.60/x
  3. Step 3: Cross multiply
    578,521.20x = 867,522.60 × 262,815.60
  4. Step 4: Simplify right side
    578,521.20x = 227,998,472,632.56
  5. Step 5: Solve for x
    x = 227,998,472,632.56/578,521.20
  6. Step 6: Final answer
    x = 394,105.65

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