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Finding the Fourth Proportional to 515,378.36, 773,120.54 and 178,418.36

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Solution

The fourth proportional to 515,378.36, 773,120.54 and 178,418.36 is: 267,645.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,378.36 : 773,120.54 = 178,418.36 : x
  2. Step 2: Convert to fraction form
    515,378.36/773,120.54 = 178,418.36/x
  3. Step 3: Cross multiply
    515,378.36x = 773,120.54 × 178,418.36
  4. Step 4: Simplify right side
    515,378.36x = 137,938,898,829.11
  5. Step 5: Solve for x
    x = 137,938,898,829.11/515,378.36
  6. Step 6: Final answer
    x = 267,645.89

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