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Finding the Fourth Proportional to 600.20, 827.88 and 403.64

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Solution

The fourth proportional to 600.20, 827.88 and 403.64 is: 556.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    600.20 : 827.88 = 403.64 : x
  2. Step 2: Convert to fraction form
    600.20/827.88 = 403.64/x
  3. Step 3: Cross multiply
    600.20x = 827.88 × 403.64
  4. Step 4: Simplify right side
    600.20x = 334,165.48
  5. Step 5: Solve for x
    x = 334,165.48/600.20
  6. Step 6: Final answer
    x = 556.76

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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.