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Finding the Third Proportional to 406,989 and 886,301

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Solution

The third proportional to 406,989 and 886,301 is: 1,930,099.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,989 : 886,301 = 886,301 : x
  2. Step 2: Convert to fraction form
    406,989/886,301 = 886,301/x
  3. Step 3: Cross multiply
    406,989x = 886,301 × 886,301
  4. Step 4: Simplify right side
    406,989x = 785,529,462,601
  5. Step 5: Solve for x
    x = 785,529,462,601/406,989
  6. Step 6: Final answer
    x = 1,930,099.98

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.