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Finding the Third Proportional to 301,039 and 626,990

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Solution

The third proportional to 301,039 and 626,990 is: 1,305,865.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,039 : 626,990 = 626,990 : x
  2. Step 2: Convert to fraction form
    301,039/626,990 = 626,990/x
  3. Step 3: Cross multiply
    301,039x = 626,990 × 626,990
  4. Step 4: Simplify right side
    301,039x = 393,116,460,100
  5. Step 5: Solve for x
    x = 393,116,460,100/301,039
  6. Step 6: Final answer
    x = 1,305,865.55

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.