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Finding the Fourth Proportional to 470,807.20, 706,210.80 and 115,816.60

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Solution

The fourth proportional to 470,807.20, 706,210.80 and 115,816.60 is: 173,724.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,807.20 : 706,210.80 = 115,816.60 : x
  2. Step 2: Convert to fraction form
    470,807.20/706,210.80 = 115,816.60/x
  3. Step 3: Cross multiply
    470,807.20x = 706,210.80 × 115,816.60
  4. Step 4: Simplify right side
    470,807.20x = 81,790,933,739.28
  5. Step 5: Solve for x
    x = 81,790,933,739.28/470,807.20
  6. Step 6: Final answer
    x = 173,724.90

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