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Finding the Fourth Proportional to 464,900.80, 697,351.20 and 127,940.80

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Solution

The fourth proportional to 464,900.80, 697,351.20 and 127,940.80 is: 191,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,900.80 : 697,351.20 = 127,940.80 : x
  2. Step 2: Convert to fraction form
    464,900.80/697,351.20 = 127,940.80/x
  3. Step 3: Cross multiply
    464,900.80x = 697,351.20 × 127,940.80
  4. Step 4: Simplify right side
    464,900.80x = 89,219,670,408.96
  5. Step 5: Solve for x
    x = 89,219,670,408.96/464,900.80
  6. Step 6: Final answer
    x = 191,911.20

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