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Finding the Fourth Proportional to 590.39, 814.76 and 341.79

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Solution

The fourth proportional to 590.39, 814.76 and 341.79 is: 471.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.39 : 814.76 = 341.79 : x
  2. Step 2: Convert to fraction form
    590.39/814.76 = 341.79/x
  3. Step 3: Cross multiply
    590.39x = 814.76 × 341.79
  4. Step 4: Simplify right side
    590.39x = 278,476.39
  5. Step 5: Solve for x
    x = 278,476.39/590.39
  6. Step 6: Final answer
    x = 471.68

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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.