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Finding the Fourth Proportional to 482,857.60, 724,286.40 and 356,886.40

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Solution

The fourth proportional to 482,857.60, 724,286.40 and 356,886.40 is: 535,329.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,857.60 : 724,286.40 = 356,886.40 : x
  2. Step 2: Convert to fraction form
    482,857.60/724,286.40 = 356,886.40/x
  3. Step 3: Cross multiply
    482,857.60x = 724,286.40 × 356,886.40
  4. Step 4: Simplify right side
    482,857.60x = 258,487,965,864.96
  5. Step 5: Solve for x
    x = 258,487,965,864.96/482,857.60
  6. Step 6: Final answer
    x = 535,329.60

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