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Finding the Fourth Proportional to 561,735.20, 840,853.20 and 404,271.20

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Solution

The fourth proportional to 561,735.20, 840,853.20 and 404,271.20 is: 605,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,735.20 : 840,853.20 = 404,271.20 : x
  2. Step 2: Convert to fraction form
    561,735.20/840,853.20 = 404,271.20/x
  3. Step 3: Cross multiply
    561,735.20x = 840,853.20 × 404,271.20
  4. Step 4: Simplify right side
    561,735.20x = 339,932,732,187.84
  5. Step 5: Solve for x
    x = 339,932,732,187.84/561,735.20
  6. Step 6: Final answer
    x = 605,147.64

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