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Finding the Fourth Proportional to 648,012.80, 972,019.20 and 227,136.80

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Solution

The fourth proportional to 648,012.80, 972,019.20 and 227,136.80 is: 340,705.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,012.80 : 972,019.20 = 227,136.80 : x
  2. Step 2: Convert to fraction form
    648,012.80/972,019.20 = 227,136.80/x
  3. Step 3: Cross multiply
    648,012.80x = 972,019.20 × 227,136.80
  4. Step 4: Simplify right side
    648,012.80x = 220,781,330,626.56
  5. Step 5: Solve for x
    x = 220,781,330,626.56/648,012.80
  6. Step 6: Final answer
    x = 340,705.20

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