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Finding the Third Proportional to 298,945 and 453,953

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Solution

The third proportional to 298,945 and 453,953 is: 689,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,945 : 453,953 = 453,953 : x
  2. Step 2: Convert to fraction form
    298,945/453,953 = 453,953/x
  3. Step 3: Cross multiply
    298,945x = 453,953 × 453,953
  4. Step 4: Simplify right side
    298,945x = 206,073,326,209
  5. Step 5: Solve for x
    x = 206,073,326,209/298,945
  6. Step 6: Final answer
    x = 689,335.25

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.