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Finding the Fourth Proportional to 568.91, 853.50 and 460.21

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Solution

The fourth proportional to 568.91, 853.50 and 460.21 is: 690.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    568.91 : 853.50 = 460.21 : x
  2. Step 2: Convert to fraction form
    568.91/853.50 = 460.21/x
  3. Step 3: Cross multiply
    568.91x = 853.50 × 460.21
  4. Step 4: Simplify right side
    568.91x = 392,789.24
  5. Step 5: Solve for x
    x = 392,789.24/568.91
  6. Step 6: Final answer
    x = 690.42

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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.