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Finding the Fourth Proportional to 465,431.73, 642,299.81 and 261,486.69

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Solution

The fourth proportional to 465,431.73, 642,299.81 and 261,486.69 is: 360,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,431.73 : 642,299.81 = 261,486.69 : x
  2. Step 2: Convert to fraction form
    465,431.73/642,299.81 = 261,486.69/x
  3. Step 3: Cross multiply
    465,431.73x = 642,299.81 × 261,486.69
  4. Step 4: Simplify right side
    465,431.73x = 167,952,849,997.10
  5. Step 5: Solve for x
    x = 167,952,849,997.10/465,431.73
  6. Step 6: Final answer
    x = 360,853.89

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