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Finding the Third Proportional to 869,834 and 1,330,587

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Solution

The third proportional to 869,834 and 1,330,587 is: 2,035,401.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,834 : 1,330,587 = 1,330,587 : x
  2. Step 2: Convert to fraction form
    869,834/1,330,587 = 1,330,587/x
  3. Step 3: Cross multiply
    869,834x = 1,330,587 × 1,330,587
  4. Step 4: Simplify right side
    869,834x = 1,770,461,764,569
  5. Step 5: Solve for x
    x = 1,770,461,764,569/869,834
  6. Step 6: Final answer
    x = 2,035,401.89

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.