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Finding the Fourth Proportional to 607.06, 909.36 and 401.11

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Solution

The fourth proportional to 607.06, 909.36 and 401.11 is: 600.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.06 : 909.36 = 401.11 : x
  2. Step 2: Convert to fraction form
    607.06/909.36 = 401.11/x
  3. Step 3: Cross multiply
    607.06x = 909.36 × 401.11
  4. Step 4: Simplify right side
    607.06x = 364,753.39
  5. Step 5: Solve for x
    x = 364,753.39/607.06
  6. Step 6: Final answer
    x = 600.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.