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Finding the Fourth Proportional to 483.09, 722.79 and 277.76

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Solution

The fourth proportional to 483.09, 722.79 and 277.76 is: 415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.09 : 722.79 = 277.76 : x
  2. Step 2: Convert to fraction form
    483.09/722.79 = 277.76/x
  3. Step 3: Cross multiply
    483.09x = 722.79 × 277.76
  4. Step 4: Simplify right side
    483.09x = 200,758.54
  5. Step 5: Solve for x
    x = 200,758.54/483.09
  6. Step 6: Final answer
    x = 415.57

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