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Finding the Fourth Proportional to 671.01, 926.19 and 405.41

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Solution

The fourth proportional to 671.01, 926.19 and 405.41 is: 559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.01 : 926.19 = 405.41 : x
  2. Step 2: Convert to fraction form
    671.01/926.19 = 405.41/x
  3. Step 3: Cross multiply
    671.01x = 926.19 × 405.41
  4. Step 4: Simplify right side
    671.01x = 375,489.00
  5. Step 5: Solve for x
    x = 375,489.00/671.01
  6. Step 6: Final answer
    x = 559.59

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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.