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Finding the Fourth Proportional to 484.38, 722.48 and 406.44

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Solution

The fourth proportional to 484.38, 722.48 and 406.44 is: 606.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.38 : 722.48 = 406.44 : x
  2. Step 2: Convert to fraction form
    484.38/722.48 = 406.44/x
  3. Step 3: Cross multiply
    484.38x = 722.48 × 406.44
  4. Step 4: Simplify right side
    484.38x = 293,644.77
  5. Step 5: Solve for x
    x = 293,644.77/484.38
  6. Step 6: Final answer
    x = 606.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.