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Finding the Fourth Proportional to 451,007.65, 621,891.82 and 287,404.99

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Solution

The fourth proportional to 451,007.65, 621,891.82 and 287,404.99 is: 396,301.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,007.65 : 621,891.82 = 287,404.99 : x
  2. Step 2: Convert to fraction form
    451,007.65/621,891.82 = 287,404.99/x
  3. Step 3: Cross multiply
    451,007.65x = 621,891.82 × 287,404.99
  4. Step 4: Simplify right side
    451,007.65x = 178,734,812,308.18
  5. Step 5: Solve for x
    x = 178,734,812,308.18/451,007.65
  6. Step 6: Final answer
    x = 396,301.07

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