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Finding the Third Proportional to 513,112 and 804,915

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Solution

The third proportional to 513,112 and 804,915 is: 1,262,664.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,112 : 804,915 = 804,915 : x
  2. Step 2: Convert to fraction form
    513,112/804,915 = 804,915/x
  3. Step 3: Cross multiply
    513,112x = 804,915 × 804,915
  4. Step 4: Simplify right side
    513,112x = 647,888,157,225
  5. Step 5: Solve for x
    x = 647,888,157,225/513,112
  6. Step 6: Final answer
    x = 1,262,664.21

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.