Home / 809,632.40-1,214,794.20-388,691.60

Finding the Fourth Proportional to 809,632.40, 1,214,794.20 and 388,691.60

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Solution

The fourth proportional to 809,632.40, 1,214,794.20 and 388,691.60 is: 583,203.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,632.40 : 1,214,794.20 = 388,691.60 : x
  2. Step 2: Convert to fraction form
    809,632.40/1,214,794.20 = 388,691.60/x
  3. Step 3: Cross multiply
    809,632.40x = 1,214,794.20 × 388,691.60
  4. Step 4: Simplify right side
    809,632.40x = 472,180,301,268.72
  5. Step 5: Solve for x
    x = 472,180,301,268.72/809,632.40
  6. Step 6: Final answer
    x = 583,203.32

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