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Finding the Third Proportional to 644,130 and 1,399,250.25

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Solution

The third proportional to 644,130 and 1,399,250.25 is: 3,039,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,130 : 1,399,250.25 = 1,399,250.25 : x
  2. Step 2: Convert to fraction form
    644,130/1,399,250.25 = 1,399,250.25/x
  3. Step 3: Cross multiply
    644,130x = 1,399,250.25 × 1,399,250.25
  4. Step 4: Simplify right side
    644,130x = 1,957,901,262,125.06
  5. Step 5: Solve for x
    x = 1,957,901,262,125.06/644,130
  6. Step 6: Final answer
    x = 3,039,605.77

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.