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Finding the Fourth Proportional to 604.72, 836.22 and 490.24

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Solution

The fourth proportional to 604.72, 836.22 and 490.24 is: 677.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.72 : 836.22 = 490.24 : x
  2. Step 2: Convert to fraction form
    604.72/836.22 = 490.24/x
  3. Step 3: Cross multiply
    604.72x = 836.22 × 490.24
  4. Step 4: Simplify right side
    604.72x = 409,948.49
  5. Step 5: Solve for x
    x = 409,948.49/604.72
  6. Step 6: Final answer
    x = 677.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.