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Finding the Third Proportional to 831,147 and 1,109,235

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Solution

The third proportional to 831,147 and 1,109,235 is: 1,480,366.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,147 : 1,109,235 = 1,109,235 : x
  2. Step 2: Convert to fraction form
    831,147/1,109,235 = 1,109,235/x
  3. Step 3: Cross multiply
    831,147x = 1,109,235 × 1,109,235
  4. Step 4: Simplify right side
    831,147x = 1,230,402,285,225
  5. Step 5: Solve for x
    x = 1,230,402,285,225/831,147
  6. Step 6: Final answer
    x = 1,480,366.63

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.