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Finding the Fourth Proportional to 671.02, 926.12 and 494.23

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Solution

The fourth proportional to 671.02, 926.12 and 494.23 is: 682.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.02 : 926.12 = 494.23 : x
  2. Step 2: Convert to fraction form
    671.02/926.12 = 494.23/x
  3. Step 3: Cross multiply
    671.02x = 926.12 × 494.23
  4. Step 4: Simplify right side
    671.02x = 457,716.29
  5. Step 5: Solve for x
    x = 457,716.29/671.02
  6. Step 6: Final answer
    x = 682.12

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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.