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Finding the Fourth Proportional to 877.02, 1,314.72 and 492

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Solution

The fourth proportional to 877.02, 1,314.72 and 492 is: 737.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    877.02 : 1,314.72 = 492 : x
  2. Step 2: Convert to fraction form
    877.02/1,314.72 = 492/x
  3. Step 3: Cross multiply
    877.02x = 1,314.72 × 492
  4. Step 4: Simplify right side
    877.02x = 646,842.24
  5. Step 5: Solve for x
    x = 646,842.24/877.02
  6. Step 6: Final answer
    x = 737.55

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