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Finding the Fourth Proportional to 673.21, 928.99 and 374.47

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Solution

The fourth proportional to 673.21, 928.99 and 374.47 is: 516.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.21 : 928.99 = 374.47 : x
  2. Step 2: Convert to fraction form
    673.21/928.99 = 374.47/x
  3. Step 3: Cross multiply
    673.21x = 928.99 × 374.47
  4. Step 4: Simplify right side
    673.21x = 347,876.56
  5. Step 5: Solve for x
    x = 347,876.56/673.21
  6. Step 6: Final answer
    x = 516.75

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