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Finding the Third Proportional to 626,699 and 1,286,578

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Solution

The third proportional to 626,699 and 1,286,578 is: 2,641,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,699 : 1,286,578 = 1,286,578 : x
  2. Step 2: Convert to fraction form
    626,699/1,286,578 = 1,286,578/x
  3. Step 3: Cross multiply
    626,699x = 1,286,578 × 1,286,578
  4. Step 4: Simplify right side
    626,699x = 1,655,282,950,084
  5. Step 5: Solve for x
    x = 1,655,282,950,084/626,699
  6. Step 6: Final answer
    x = 2,641,272.68

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.