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Finding the Third Proportional to 776,429 and 1,646,170

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Solution

The third proportional to 776,429 and 1,646,170 is: 3,490,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,429 : 1,646,170 = 1,646,170 : x
  2. Step 2: Convert to fraction form
    776,429/1,646,170 = 1,646,170/x
  3. Step 3: Cross multiply
    776,429x = 1,646,170 × 1,646,170
  4. Step 4: Simplify right side
    776,429x = 2,709,875,668,900
  5. Step 5: Solve for x
    x = 2,709,875,668,900/776,429
  6. Step 6: Final answer
    x = 3,490,178.33

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.