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Finding the Third Proportional to 637,881 and 987,692

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Solution

The third proportional to 637,881 and 987,692 is: 1,529,337.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,881 : 987,692 = 987,692 : x
  2. Step 2: Convert to fraction form
    637,881/987,692 = 987,692/x
  3. Step 3: Cross multiply
    637,881x = 987,692 × 987,692
  4. Step 4: Simplify right side
    637,881x = 975,535,486,864
  5. Step 5: Solve for x
    x = 975,535,486,864/637,881
  6. Step 6: Final answer
    x = 1,529,337.74

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.