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Finding the Third Proportional to 271,772 and 576,430

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Solution

The third proportional to 271,772 and 576,430 is: 1,222,611.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,772 : 576,430 = 576,430 : x
  2. Step 2: Convert to fraction form
    271,772/576,430 = 576,430/x
  3. Step 3: Cross multiply
    271,772x = 576,430 × 576,430
  4. Step 4: Simplify right side
    271,772x = 332,271,544,900
  5. Step 5: Solve for x
    x = 332,271,544,900/271,772
  6. Step 6: Final answer
    x = 1,222,611.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.