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Finding the Fourth Proportional to 896.70, 1,342.56 and 462.92

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Solution

The fourth proportional to 896.70, 1,342.56 and 462.92 is: 693.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.70 : 1,342.56 = 462.92 : x
  2. Step 2: Convert to fraction form
    896.70/1,342.56 = 462.92/x
  3. Step 3: Cross multiply
    896.70x = 1,342.56 × 462.92
  4. Step 4: Simplify right side
    896.70x = 621,497.88
  5. Step 5: Solve for x
    x = 621,497.88/896.70
  6. Step 6: Final answer
    x = 693.09

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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.