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Finding the Fourth Proportional to 978,264.70, 1,372,058.90 and 978,264.70

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Solution

The fourth proportional to 978,264.70, 1,372,058.90 and 978,264.70 is: 1,372,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,264.70 : 1,372,058.90 = 978,264.70 : x
  2. Step 2: Convert to fraction form
    978,264.70/1,372,058.90 = 978,264.70/x
  3. Step 3: Cross multiply
    978,264.70x = 1,372,058.90 × 978,264.70
  4. Step 4: Simplify right side
    978,264.70x = 1,342,236,788,190.83
  5. Step 5: Solve for x
    x = 1,342,236,788,190.83/978,264.70
  6. Step 6: Final answer
    x = 1,372,058.90

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Why These Related Problems?

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