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Finding the Fourth Proportional to 978,220.80, 1,464,998.40 and 978,220.80

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Solution

The fourth proportional to 978,220.80, 1,464,998.40 and 978,220.80 is: 1,464,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,220.80 : 1,464,998.40 = 978,220.80 : x
  2. Step 2: Convert to fraction form
    978,220.80/1,464,998.40 = 978,220.80/x
  3. Step 3: Cross multiply
    978,220.80x = 1,464,998.40 × 978,220.80
  4. Step 4: Simplify right side
    978,220.80x = 1,433,091,906,846.72
  5. Step 5: Solve for x
    x = 1,433,091,906,846.72/978,220.80
  6. Step 6: Final answer
    x = 1,464,998.40

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Why These Related Problems?

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