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Finding the Third Proportional to 455,730 and 997,230

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Solution

The third proportional to 455,730 and 997,230 is: 2,182,142.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,730 : 997,230 = 997,230 : x
  2. Step 2: Convert to fraction form
    455,730/997,230 = 997,230/x
  3. Step 3: Cross multiply
    455,730x = 997,230 × 997,230
  4. Step 4: Simplify right side
    455,730x = 994,467,672,900
  5. Step 5: Solve for x
    x = 994,467,672,900/455,730
  6. Step 6: Final answer
    x = 2,182,142.22

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.