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Finding the Third Proportional to 638,348 and 970,788

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Solution

The third proportional to 638,348 and 970,788 is: 1,476,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,348 : 970,788 = 970,788 : x
  2. Step 2: Convert to fraction form
    638,348/970,788 = 970,788/x
  3. Step 3: Cross multiply
    638,348x = 970,788 × 970,788
  4. Step 4: Simplify right side
    638,348x = 942,429,340,944
  5. Step 5: Solve for x
    x = 942,429,340,944/638,348
  6. Step 6: Final answer
    x = 1,476,356.69

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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.