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Finding the Third Proportional to 972,221 and 1,521,656

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Solution

The third proportional to 972,221 and 1,521,656 is: 2,381,595.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,221 : 1,521,656 = 1,521,656 : x
  2. Step 2: Convert to fraction form
    972,221/1,521,656 = 1,521,656/x
  3. Step 3: Cross multiply
    972,221x = 1,521,656 × 1,521,656
  4. Step 4: Simplify right side
    972,221x = 2,315,436,982,336
  5. Step 5: Solve for x
    x = 2,315,436,982,336/972,221
  6. Step 6: Final answer
    x = 2,381,595.32

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.