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Finding the Fourth Proportional to 978,149.20, 1,367,750 and 978,149.20

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Solution

The fourth proportional to 978,149.20, 1,367,750 and 978,149.20 is: 1,367,750

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,149.20 : 1,367,750 = 978,149.20 : x
  2. Step 2: Convert to fraction form
    978,149.20/1,367,750 = 978,149.20/x
  3. Step 3: Cross multiply
    978,149.20x = 1,367,750 × 978,149.20
  4. Step 4: Simplify right side
    978,149.20x = 1,337,863,568,300
  5. Step 5: Solve for x
    x = 1,337,863,568,300/978,149.20
  6. Step 6: Final answer
    x = 1,367,750

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