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Finding the Fourth Proportional to 597.91, 896.79 and 379.21

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Solution

The fourth proportional to 597.91, 896.79 and 379.21 is: 568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    597.91 : 896.79 = 379.21 : x
  2. Step 2: Convert to fraction form
    597.91/896.79 = 379.21/x
  3. Step 3: Cross multiply
    597.91x = 896.79 × 379.21
  4. Step 4: Simplify right side
    597.91x = 340,071.74
  5. Step 5: Solve for x
    x = 340,071.74/597.91
  6. Step 6: Final answer
    x = 568.77

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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.