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Finding the Fourth Proportional to 673.15, 927.97 and 445.64

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Solution

The fourth proportional to 673.15, 927.97 and 445.64 is: 614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.15 : 927.97 = 445.64 : x
  2. Step 2: Convert to fraction form
    673.15/927.97 = 445.64/x
  3. Step 3: Cross multiply
    673.15x = 927.97 × 445.64
  4. Step 4: Simplify right side
    673.15x = 413,540.76
  5. Step 5: Solve for x
    x = 413,540.76/673.15
  6. Step 6: Final answer
    x = 614.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.