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Finding the Fourth Proportional to 604.91, 906.93 and 311.83

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Solution

The fourth proportional to 604.91, 906.93 and 311.83 is: 467.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.91 : 906.93 = 311.83 : x
  2. Step 2: Convert to fraction form
    604.91/906.93 = 311.83/x
  3. Step 3: Cross multiply
    604.91x = 906.93 × 311.83
  4. Step 4: Simplify right side
    604.91x = 282,805.71
  5. Step 5: Solve for x
    x = 282,805.71/604.91
  6. Step 6: Final answer
    x = 467.52

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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.