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Finding the Fourth Proportional to 978,642.60, 1,467,963.90 and 978,642.60

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Solution

The fourth proportional to 978,642.60, 1,467,963.90 and 978,642.60 is: 1,467,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,642.60 : 1,467,963.90 = 978,642.60 : x
  2. Step 2: Convert to fraction form
    978,642.60/1,467,963.90 = 978,642.60/x
  3. Step 3: Cross multiply
    978,642.60x = 1,467,963.90 × 978,642.60
  4. Step 4: Simplify right side
    978,642.60x = 1,436,612,007,802.14
  5. Step 5: Solve for x
    x = 1,436,612,007,802.14/978,642.60
  6. Step 6: Final answer
    x = 1,467,963.90

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