Home / 1,321,318.88-1,982,109.52-422,534.80

Finding the Fourth Proportional to 1,321,318.88, 1,982,109.52 and 422,534.80

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Solution

The fourth proportional to 1,321,318.88, 1,982,109.52 and 422,534.80 is: 633,844.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,318.88 : 1,982,109.52 = 422,534.80 : x
  2. Step 2: Convert to fraction form
    1,321,318.88/1,982,109.52 = 422,534.80/x
  3. Step 3: Cross multiply
    1,321,318.88x = 1,982,109.52 × 422,534.80
  4. Step 4: Simplify right side
    1,321,318.88x = 837,510,249,611.30
  5. Step 5: Solve for x
    x = 837,510,249,611.30/1,321,318.88
  6. Step 6: Final answer
    x = 633,844.16

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