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Finding the Third Proportional to 287,652 and 625,806

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Solution

The third proportional to 287,652 and 625,806 is: 1,361,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,652 : 625,806 = 625,806 : x
  2. Step 2: Convert to fraction form
    287,652/625,806 = 625,806/x
  3. Step 3: Cross multiply
    287,652x = 625,806 × 625,806
  4. Step 4: Simplify right side
    287,652x = 391,633,149,636
  5. Step 5: Solve for x
    x = 391,633,149,636/287,652
  6. Step 6: Final answer
    x = 1,361,482.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.