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Finding the Fourth Proportional to 978,190.80, 1,370,866.80 and 978,190.80

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Solution

The fourth proportional to 978,190.80, 1,370,866.80 and 978,190.80 is: 1,370,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,190.80 : 1,370,866.80 = 978,190.80 : x
  2. Step 2: Convert to fraction form
    978,190.80/1,370,866.80 = 978,190.80/x
  3. Step 3: Cross multiply
    978,190.80x = 1,370,866.80 × 978,190.80
  4. Step 4: Simplify right side
    978,190.80x = 1,340,969,291,785.44
  5. Step 5: Solve for x
    x = 1,340,969,291,785.44/978,190.80
  6. Step 6: Final answer
    x = 1,370,866.80

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Why These Related Problems?

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