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Finding the Fourth Proportional to 457,010.40, 685,655.64 and 204,503.40

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Solution

The fourth proportional to 457,010.40, 685,655.64 and 204,503.40 is: 306,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,010.40 : 685,655.64 = 204,503.40 : x
  2. Step 2: Convert to fraction form
    457,010.40/685,655.64 = 204,503.40/x
  3. Step 3: Cross multiply
    457,010.40x = 685,655.64 × 204,503.40
  4. Step 4: Simplify right side
    457,010.40x = 140,218,909,609.18
  5. Step 5: Solve for x
    x = 140,218,909,609.18/457,010.40
  6. Step 6: Final answer
    x = 306,817.77

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