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Finding the Fourth Proportional to 447,340.40, 670,573.20 and 400,101.20

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Solution

The fourth proportional to 447,340.40, 670,573.20 and 400,101.20 is: 599,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,340.40 : 670,573.20 = 400,101.20 : x
  2. Step 2: Convert to fraction form
    447,340.40/670,573.20 = 400,101.20/x
  3. Step 3: Cross multiply
    447,340.40x = 670,573.20 × 400,101.20
  4. Step 4: Simplify right side
    447,340.40x = 268,297,142,007.84
  5. Step 5: Solve for x
    x = 268,297,142,007.84/447,340.40
  6. Step 6: Final answer
    x = 599,760.59

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