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Finding the Third Proportional to 690,855 and 1,628,515

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Solution

The third proportional to 690,855 and 1,628,515 is: 3,838,810.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,855 : 1,628,515 = 1,628,515 : x
  2. Step 2: Convert to fraction form
    690,855/1,628,515 = 1,628,515/x
  3. Step 3: Cross multiply
    690,855x = 1,628,515 × 1,628,515
  4. Step 4: Simplify right side
    690,855x = 2,652,061,105,225
  5. Step 5: Solve for x
    x = 2,652,061,105,225/690,855
  6. Step 6: Final answer
    x = 3,838,810.03

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.