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Finding the Fourth Proportional to 495.37, 683.08 and 445.79

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Solution

The fourth proportional to 495.37, 683.08 and 445.79 is: 614.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.37 : 683.08 = 445.79 : x
  2. Step 2: Convert to fraction form
    495.37/683.08 = 445.79/x
  3. Step 3: Cross multiply
    495.37x = 683.08 × 445.79
  4. Step 4: Simplify right side
    495.37x = 304,505.70
  5. Step 5: Solve for x
    x = 304,505.70/495.37
  6. Step 6: Final answer
    x = 614.71

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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.