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Finding the Fourth Proportional to 604.49, 905.18 and 506.76

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Solution

The fourth proportional to 604.49, 905.18 and 506.76 is: 758.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.49 : 905.18 = 506.76 : x
  2. Step 2: Convert to fraction form
    604.49/905.18 = 506.76/x
  3. Step 3: Cross multiply
    604.49x = 905.18 × 506.76
  4. Step 4: Simplify right side
    604.49x = 458,703.09
  5. Step 5: Solve for x
    x = 458,703.09/604.49
  6. Step 6: Final answer
    x = 758.82

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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.