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Finding the Third Proportional to 425,873 and 659,310

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Solution

The third proportional to 425,873 and 659,310 is: 1,020,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,873 : 659,310 = 659,310 : x
  2. Step 2: Convert to fraction form
    425,873/659,310 = 659,310/x
  3. Step 3: Cross multiply
    425,873x = 659,310 × 659,310
  4. Step 4: Simplify right side
    425,873x = 434,689,676,100
  5. Step 5: Solve for x
    x = 434,689,676,100/425,873
  6. Step 6: Final answer
    x = 1,020,702.59

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.