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Finding the Third Proportional to 455,715 and 997,248

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Solution

The third proportional to 455,715 and 997,248 is: 2,182,292.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,715 : 997,248 = 997,248 : x
  2. Step 2: Convert to fraction form
    455,715/997,248 = 997,248/x
  3. Step 3: Cross multiply
    455,715x = 997,248 × 997,248
  4. Step 4: Simplify right side
    455,715x = 994,503,573,504
  5. Step 5: Solve for x
    x = 994,503,573,504/455,715
  6. Step 6: Final answer
    x = 2,182,292.82

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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.