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Finding the Third Proportional to 478,751 and 728,073

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Solution

The third proportional to 478,751 and 728,073 is: 1,107,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,751 : 728,073 = 728,073 : x
  2. Step 2: Convert to fraction form
    478,751/728,073 = 728,073/x
  3. Step 3: Cross multiply
    478,751x = 728,073 × 728,073
  4. Step 4: Simplify right side
    478,751x = 530,090,293,329
  5. Step 5: Solve for x
    x = 530,090,293,329/478,751
  6. Step 6: Final answer
    x = 1,107,235.90

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.