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Finding the Fourth Proportional to 622.02, 931.64 and 484

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Solution

The fourth proportional to 622.02, 931.64 and 484 is: 724.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    622.02 : 931.64 = 484 : x
  2. Step 2: Convert to fraction form
    622.02/931.64 = 484/x
  3. Step 3: Cross multiply
    622.02x = 931.64 × 484
  4. Step 4: Simplify right side
    622.02x = 450,913.76
  5. Step 5: Solve for x
    x = 450,913.76/622.02
  6. Step 6: Final answer
    x = 724.92

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