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Finding the Third Proportional to 620,909 and 1,358,053

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Solution

The third proportional to 620,909 and 1,358,053 is: 2,970,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,909 : 1,358,053 = 1,358,053 : x
  2. Step 2: Convert to fraction form
    620,909/1,358,053 = 1,358,053/x
  3. Step 3: Cross multiply
    620,909x = 1,358,053 × 1,358,053
  4. Step 4: Simplify right side
    620,909x = 1,844,307,950,809
  5. Step 5: Solve for x
    x = 1,844,307,950,809/620,909
  6. Step 6: Final answer
    x = 2,970,335.35

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.