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Finding the Fourth Proportional to 401.06, 604.14 and 397.41

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Solution

The fourth proportional to 401.06, 604.14 and 397.41 is: 598.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.06 : 604.14 = 397.41 : x
  2. Step 2: Convert to fraction form
    401.06/604.14 = 397.41/x
  3. Step 3: Cross multiply
    401.06x = 604.14 × 397.41
  4. Step 4: Simplify right side
    401.06x = 240,091.28
  5. Step 5: Solve for x
    x = 240,091.28/401.06
  6. Step 6: Final answer
    x = 598.65

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.