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Finding the Third Proportional to 482.81 and 683.91

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Solution

The third proportional to 482.81 and 683.91 is: 968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    482.81 : 683.91 = 683.91 : x
  2. Step 2: Convert to fraction form
    482.81/683.91 = 683.91/x
  3. Step 3: Cross multiply
    482.81x = 683.91 × 683.91
  4. Step 4: Simplify right side
    482.81x = 467,727.76
  5. Step 5: Solve for x
    x = 467,727.76/482.81
  6. Step 6: Final answer
    x = 968.76

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.