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Finding the Fourth Proportional to 355,698.80, 533,548.20 and 339,952.40

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Solution

The fourth proportional to 355,698.80, 533,548.20 and 339,952.40 is: 509,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,698.80 : 533,548.20 = 339,952.40 : x
  2. Step 2: Convert to fraction form
    355,698.80/533,548.20 = 339,952.40/x
  3. Step 3: Cross multiply
    355,698.80x = 533,548.20 × 339,952.40
  4. Step 4: Simplify right side
    355,698.80x = 181,380,991,105.68
  5. Step 5: Solve for x
    x = 181,380,991,105.68/355,698.80
  6. Step 6: Final answer
    x = 509,928.60

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