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Finding the Fourth Proportional to 786.54, 1,179 and 299.46

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Solution

The fourth proportional to 786.54, 1,179 and 299.46 is: 448.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    786.54 : 1,179 = 299.46 : x
  2. Step 2: Convert to fraction form
    786.54/1,179 = 299.46/x
  3. Step 3: Cross multiply
    786.54x = 1,179 × 299.46
  4. Step 4: Simplify right side
    786.54x = 353,063.34
  5. Step 5: Solve for x
    x = 353,063.34/786.54
  6. Step 6: Final answer
    x = 448.88

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