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Finding the Third Proportional to 513,942 and 818,433

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Solution

The third proportional to 513,942 and 818,433 is: 1,303,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,942 : 818,433 = 818,433 : x
  2. Step 2: Convert to fraction form
    513,942/818,433 = 818,433/x
  3. Step 3: Cross multiply
    513,942x = 818,433 × 818,433
  4. Step 4: Simplify right side
    513,942x = 669,832,575,489
  5. Step 5: Solve for x
    x = 669,832,575,489/513,942
  6. Step 6: Final answer
    x = 1,303,323.28

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.