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Finding the Third Proportional to 628,630 and 1,356,835

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Solution

The third proportional to 628,630 and 1,356,835 is: 2,928,592.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,630 : 1,356,835 = 1,356,835 : x
  2. Step 2: Convert to fraction form
    628,630/1,356,835 = 1,356,835/x
  3. Step 3: Cross multiply
    628,630x = 1,356,835 × 1,356,835
  4. Step 4: Simplify right side
    628,630x = 1,841,001,217,225
  5. Step 5: Solve for x
    x = 1,841,001,217,225/628,630
  6. Step 6: Final answer
    x = 2,928,592.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.