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Finding the Third Proportional to 453,260 and 679,890

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Solution

The third proportional to 453,260 and 679,890 is: 1,019,835

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,260 : 679,890 = 679,890 : x
  2. Step 2: Convert to fraction form
    453,260/679,890 = 679,890/x
  3. Step 3: Cross multiply
    453,260x = 679,890 × 679,890
  4. Step 4: Simplify right side
    453,260x = 462,250,412,100
  5. Step 5: Solve for x
    x = 462,250,412,100/453,260
  6. Step 6: Final answer
    x = 1,019,835

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.