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Finding the Third Proportional to 576,454.50 and 821,169

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Solution

The third proportional to 576,454.50 and 821,169 is: 1,169,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,454.50 : 821,169 = 821,169 : x
  2. Step 2: Convert to fraction form
    576,454.50/821,169 = 821,169/x
  3. Step 3: Cross multiply
    576,454.50x = 821,169 × 821,169
  4. Step 4: Simplify right side
    576,454.50x = 674,318,526,561
  5. Step 5: Solve for x
    x = 674,318,526,561/576,454.50
  6. Step 6: Final answer
    x = 1,169,768.87

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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.