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Finding the Fourth Proportional to 978,365.70, 1,372,200.30 and 978,365.70

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Solution

The fourth proportional to 978,365.70, 1,372,200.30 and 978,365.70 is: 1,372,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,365.70 : 1,372,200.30 = 978,365.70 : x
  2. Step 2: Convert to fraction form
    978,365.70/1,372,200.30 = 978,365.70/x
  3. Step 3: Cross multiply
    978,365.70x = 1,372,200.30 × 978,365.70
  4. Step 4: Simplify right side
    978,365.70x = 1,342,513,707,049.71
  5. Step 5: Solve for x
    x = 1,342,513,707,049.71/978,365.70
  6. Step 6: Final answer
    x = 1,372,200.30

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Why These Related Problems?

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