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Finding the Fourth Proportional to 403,912.40, 605,868.60 and 341,704.40

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Solution

The fourth proportional to 403,912.40, 605,868.60 and 341,704.40 is: 512,556.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,912.40 : 605,868.60 = 341,704.40 : x
  2. Step 2: Convert to fraction form
    403,912.40/605,868.60 = 341,704.40/x
  3. Step 3: Cross multiply
    403,912.40x = 605,868.60 × 341,704.40
  4. Step 4: Simplify right side
    403,912.40x = 207,027,966,441.84
  5. Step 5: Solve for x
    x = 207,027,966,441.84/403,912.40
  6. Step 6: Final answer
    x = 512,556.60

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