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Finding the Third Proportional to 478,756 and 708,876

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Solution

The third proportional to 478,756 and 708,876 is: 1,049,606.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,756 : 708,876 = 708,876 : x
  2. Step 2: Convert to fraction form
    478,756/708,876 = 708,876/x
  3. Step 3: Cross multiply
    478,756x = 708,876 × 708,876
  4. Step 4: Simplify right side
    478,756x = 502,505,183,376
  5. Step 5: Solve for x
    x = 502,505,183,376/478,756
  6. Step 6: Final answer
    x = 1,049,606.03

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.