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Finding the Third Proportional to 276,564 and 606,920

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Solution

The third proportional to 276,564 and 606,920 is: 1,331,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,564 : 606,920 = 606,920 : x
  2. Step 2: Convert to fraction form
    276,564/606,920 = 606,920/x
  3. Step 3: Cross multiply
    276,564x = 606,920 × 606,920
  4. Step 4: Simplify right side
    276,564x = 368,351,886,400
  5. Step 5: Solve for x
    x = 368,351,886,400/276,564
  6. Step 6: Final answer
    x = 1,331,886.60

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.