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Finding the Fourth Proportional to 588.66, 816.11 and 555.85

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Solution

The fourth proportional to 588.66, 816.11 and 555.85 is: 770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.66 : 816.11 = 555.85 : x
  2. Step 2: Convert to fraction form
    588.66/816.11 = 555.85/x
  3. Step 3: Cross multiply
    588.66x = 816.11 × 555.85
  4. Step 4: Simplify right side
    588.66x = 453,634.74
  5. Step 5: Solve for x
    x = 453,634.74/588.66
  6. Step 6: Final answer
    x = 770.62

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.