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Finding the Fourth Proportional to 503,305.60, 754,958.40 and 408,827.20

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Solution

The fourth proportional to 503,305.60, 754,958.40 and 408,827.20 is: 613,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,305.60 : 754,958.40 = 408,827.20 : x
  2. Step 2: Convert to fraction form
    503,305.60/754,958.40 = 408,827.20/x
  3. Step 3: Cross multiply
    503,305.60x = 754,958.40 × 408,827.20
  4. Step 4: Simplify right side
    503,305.60x = 308,647,528,788.48
  5. Step 5: Solve for x
    x = 308,647,528,788.48/503,305.60
  6. Step 6: Final answer
    x = 613,240.80

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