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Finding the Third Proportional to 644,407 and 946,879

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Solution

The third proportional to 644,407 and 946,879 is: 1,391,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,407 : 946,879 = 946,879 : x
  2. Step 2: Convert to fraction form
    644,407/946,879 = 946,879/x
  3. Step 3: Cross multiply
    644,407x = 946,879 × 946,879
  4. Step 4: Simplify right side
    644,407x = 896,579,840,641
  5. Step 5: Solve for x
    x = 896,579,840,641/644,407
  6. Step 6: Final answer
    x = 1,391,325.42

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.