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Finding the Fourth Proportional to 557.74, 834.44 and 403.96

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Solution

The fourth proportional to 557.74, 834.44 and 403.96 is: 604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    557.74 : 834.44 = 403.96 : x
  2. Step 2: Convert to fraction form
    557.74/834.44 = 403.96/x
  3. Step 3: Cross multiply
    557.74x = 834.44 × 403.96
  4. Step 4: Simplify right side
    557.74x = 337,080.38
  5. Step 5: Solve for x
    x = 337,080.38/557.74
  6. Step 6: Final answer
    x = 604.37

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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.