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Finding the Fourth Proportional to 594.91, 891.30 and 388.97

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Solution

The fourth proportional to 594.91, 891.30 and 388.97 is: 582.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    594.91 : 891.30 = 388.97 : x
  2. Step 2: Convert to fraction form
    594.91/891.30 = 388.97/x
  3. Step 3: Cross multiply
    594.91x = 891.30 × 388.97
  4. Step 4: Simplify right side
    594.91x = 346,689.31
  5. Step 5: Solve for x
    x = 346,689.31/594.91
  6. Step 6: Final answer
    x = 582.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.