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Finding the Third Proportional to 620,871 and 1,330,290

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Solution

The third proportional to 620,871 and 1,330,290 is: 2,850,304.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,871 : 1,330,290 = 1,330,290 : x
  2. Step 2: Convert to fraction form
    620,871/1,330,290 = 1,330,290/x
  3. Step 3: Cross multiply
    620,871x = 1,330,290 × 1,330,290
  4. Step 4: Simplify right side
    620,871x = 1,769,671,484,100
  5. Step 5: Solve for x
    x = 1,769,671,484,100/620,871
  6. Step 6: Final answer
    x = 2,850,304.63

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.