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Finding the Third Proportional to 371,438 and 801,990

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Solution

The third proportional to 371,438 and 801,990 is: 1,731,615.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,438 : 801,990 = 801,990 : x
  2. Step 2: Convert to fraction form
    371,438/801,990 = 801,990/x
  3. Step 3: Cross multiply
    371,438x = 801,990 × 801,990
  4. Step 4: Simplify right side
    371,438x = 643,187,960,100
  5. Step 5: Solve for x
    x = 643,187,960,100/371,438
  6. Step 6: Final answer
    x = 1,731,615.94

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.