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Finding the Fourth Proportional to 978,039.80, 1,463,949.30 and 698,103.80

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Solution

The fourth proportional to 978,039.80, 1,463,949.30 and 698,103.80 is: 1,044,935.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,039.80 : 1,463,949.30 = 698,103.80 : x
  2. Step 2: Convert to fraction form
    978,039.80/1,463,949.30 = 698,103.80/x
  3. Step 3: Cross multiply
    978,039.80x = 1,463,949.30 × 698,103.80
  4. Step 4: Simplify right side
    978,039.80x = 1,021,988,569,337.34
  5. Step 5: Solve for x
    x = 1,021,988,569,337.34/978,039.80
  6. Step 6: Final answer
    x = 1,044,935.56

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