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Finding the Fourth Proportional to 484,971.20, 727,456.80 and 442,980.80

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Solution

The fourth proportional to 484,971.20, 727,456.80 and 442,980.80 is: 664,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,971.20 : 727,456.80 = 442,980.80 : x
  2. Step 2: Convert to fraction form
    484,971.20/727,456.80 = 442,980.80/x
  3. Step 3: Cross multiply
    484,971.20x = 727,456.80 × 442,980.80
  4. Step 4: Simplify right side
    484,971.20x = 322,249,395,229.44
  5. Step 5: Solve for x
    x = 322,249,395,229.44/484,971.20
  6. Step 6: Final answer
    x = 664,471.20

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