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Finding the Fourth Proportional to 894.97, 1,234.56 and 521.83

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Solution

The fourth proportional to 894.97, 1,234.56 and 521.83 is: 719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.97 : 1,234.56 = 521.83 : x
  2. Step 2: Convert to fraction form
    894.97/1,234.56 = 521.83/x
  3. Step 3: Cross multiply
    894.97x = 1,234.56 × 521.83
  4. Step 4: Simplify right side
    894.97x = 644,230.44
  5. Step 5: Solve for x
    x = 644,230.44/894.97
  6. Step 6: Final answer
    x = 719.83

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Double scale
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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.