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Finding the Fourth Proportional to 604.91, 834.87 and 356.43

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Solution

The fourth proportional to 604.91, 834.87 and 356.43 is: 491.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.91 : 834.87 = 356.43 : x
  2. Step 2: Convert to fraction form
    604.91/834.87 = 356.43/x
  3. Step 3: Cross multiply
    604.91x = 834.87 × 356.43
  4. Step 4: Simplify right side
    604.91x = 297,572.71
  5. Step 5: Solve for x
    x = 297,572.71/604.91
  6. Step 6: Final answer
    x = 491.93

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Why These Related Problems?

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