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Finding the Fourth Proportional to 588.99, 812.44 and 379.09

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Solution

The fourth proportional to 588.99, 812.44 and 379.09 is: 522.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.99 : 812.44 = 379.09 : x
  2. Step 2: Convert to fraction form
    588.99/812.44 = 379.09/x
  3. Step 3: Cross multiply
    588.99x = 812.44 × 379.09
  4. Step 4: Simplify right side
    588.99x = 307,987.88
  5. Step 5: Solve for x
    x = 307,987.88/588.99
  6. Step 6: Final answer
    x = 522.91

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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.