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Finding the Fourth Proportional to 453.99, 626.76 and 306.84

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Solution

The fourth proportional to 453.99, 626.76 and 306.84 is: 423.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.99 : 626.76 = 306.84 : x
  2. Step 2: Convert to fraction form
    453.99/626.76 = 306.84/x
  3. Step 3: Cross multiply
    453.99x = 626.76 × 306.84
  4. Step 4: Simplify right side
    453.99x = 192,315.04
  5. Step 5: Solve for x
    x = 192,315.04/453.99
  6. Step 6: Final answer
    x = 423.61

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