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Finding the Third Proportional to 999,390 and 1,424,337

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Solution

The third proportional to 999,390 and 1,424,337 is: 2,029,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,390 : 1,424,337 = 1,424,337 : x
  2. Step 2: Convert to fraction form
    999,390/1,424,337 = 1,424,337/x
  3. Step 3: Cross multiply
    999,390x = 1,424,337 × 1,424,337
  4. Step 4: Simplify right side
    999,390x = 2,028,735,889,569
  5. Step 5: Solve for x
    x = 2,028,735,889,569/999,390
  6. Step 6: Final answer
    x = 2,029,974.17

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.