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Finding the Third Proportional to 643,518 and 961,875

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Solution

The third proportional to 643,518 and 961,875 is: 1,437,727.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,518 : 961,875 = 961,875 : x
  2. Step 2: Convert to fraction form
    643,518/961,875 = 961,875/x
  3. Step 3: Cross multiply
    643,518x = 961,875 × 961,875
  4. Step 4: Simplify right side
    643,518x = 925,203,515,625
  5. Step 5: Solve for x
    x = 925,203,515,625/643,518
  6. Step 6: Final answer
    x = 1,437,727.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.