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Finding the Third Proportional to 401,172 and 854,328

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Solution

The third proportional to 401,172 and 854,328 is: 1,819,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,172 : 854,328 = 854,328 : x
  2. Step 2: Convert to fraction form
    401,172/854,328 = 854,328/x
  3. Step 3: Cross multiply
    401,172x = 854,328 × 854,328
  4. Step 4: Simplify right side
    401,172x = 729,876,331,584
  5. Step 5: Solve for x
    x = 729,876,331,584/401,172
  6. Step 6: Final answer
    x = 1,819,360.10

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.