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Finding the Fourth Proportional to 673.22, 927.44 and 644.06

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Solution

The fourth proportional to 673.22, 927.44 and 644.06 is: 887.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.22 : 927.44 = 644.06 : x
  2. Step 2: Convert to fraction form
    673.22/927.44 = 644.06/x
  3. Step 3: Cross multiply
    673.22x = 927.44 × 644.06
  4. Step 4: Simplify right side
    673.22x = 597,327.01
  5. Step 5: Solve for x
    x = 597,327.01/673.22
  6. Step 6: Final answer
    x = 887.27

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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.