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Finding the Fourth Proportional to 588.98, 812.78 and 326.99

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Solution

The fourth proportional to 588.98, 812.78 and 326.99 is: 451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.98 : 812.78 = 326.99 : x
  2. Step 2: Convert to fraction form
    588.98/812.78 = 326.99/x
  3. Step 3: Cross multiply
    588.98x = 812.78 × 326.99
  4. Step 4: Simplify right side
    588.98x = 265,770.93
  5. Step 5: Solve for x
    x = 265,770.93/588.98
  6. Step 6: Final answer
    x = 451.24

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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.