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Finding the Fourth Proportional to 480.84, 663 and 454.90

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Solution

The fourth proportional to 480.84, 663 and 454.90 is: 627.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.84 : 663 = 454.90 : x
  2. Step 2: Convert to fraction form
    480.84/663 = 454.90/x
  3. Step 3: Cross multiply
    480.84x = 663 × 454.90
  4. Step 4: Simplify right side
    480.84x = 301,598.70
  5. Step 5: Solve for x
    x = 301,598.70/480.84
  6. Step 6: Final answer
    x = 627.23

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