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Finding the Fourth Proportional to 607.36, 909.49 and 401.31

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Solution

The fourth proportional to 607.36, 909.49 and 401.31 is: 600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.36 : 909.49 = 401.31 : x
  2. Step 2: Convert to fraction form
    607.36/909.49 = 401.31/x
  3. Step 3: Cross multiply
    607.36x = 909.49 × 401.31
  4. Step 4: Simplify right side
    607.36x = 364,987.43
  5. Step 5: Solve for x
    x = 364,987.43/607.36
  6. Step 6: Final answer
    x = 600.94

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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.