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Finding the Third Proportional to 946.69 and 1,328.91

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Solution

The third proportional to 946.69 and 1,328.91 is: 1,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    946.69 : 1,328.91 = 1,328.91 : x
  2. Step 2: Convert to fraction form
    946.69/1,328.91 = 1,328.91/x
  3. Step 3: Cross multiply
    946.69x = 1,328.91 × 1,328.91
  4. Step 4: Simplify right side
    946.69x = 1,765,991.82
  5. Step 5: Solve for x
    x = 1,765,991.82/946.69
  6. Step 6: Final answer
    x = 1,865.44

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.