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Finding the Third Proportional to 455,730 and 997,278

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Solution

The third proportional to 455,730 and 997,278 is: 2,182,352.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,730 : 997,278 = 997,278 : x
  2. Step 2: Convert to fraction form
    455,730/997,278 = 997,278/x
  3. Step 3: Cross multiply
    455,730x = 997,278 × 997,278
  4. Step 4: Simplify right side
    455,730x = 994,563,409,284
  5. Step 5: Solve for x
    x = 994,563,409,284/455,730
  6. Step 6: Final answer
    x = 2,182,352.29

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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.