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Finding the Third Proportional to 687,607 and 1,625,813

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Solution

The third proportional to 687,607 and 1,625,813 is: 3,844,155.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,607 : 1,625,813 = 1,625,813 : x
  2. Step 2: Convert to fraction form
    687,607/1,625,813 = 1,625,813/x
  3. Step 3: Cross multiply
    687,607x = 1,625,813 × 1,625,813
  4. Step 4: Simplify right side
    687,607x = 2,643,267,910,969
  5. Step 5: Solve for x
    x = 2,643,267,910,969/687,607
  6. Step 6: Final answer
    x = 3,844,155.03

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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.