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Finding the Fourth Proportional to 588.70, 811.91 and 476.62

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Solution

The fourth proportional to 588.70, 811.91 and 476.62 is: 657.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.70 : 811.91 = 476.62 : x
  2. Step 2: Convert to fraction form
    588.70/811.91 = 476.62/x
  3. Step 3: Cross multiply
    588.70x = 811.91 × 476.62
  4. Step 4: Simplify right side
    588.70x = 386,972.54
  5. Step 5: Solve for x
    x = 386,972.54/588.70
  6. Step 6: Final answer
    x = 657.33

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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.