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Finding the Third Proportional to 564,488 and 1,220,990

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Solution

The third proportional to 564,488 and 1,220,990 is: 2,641,006.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,488 : 1,220,990 = 1,220,990 : x
  2. Step 2: Convert to fraction form
    564,488/1,220,990 = 1,220,990/x
  3. Step 3: Cross multiply
    564,488x = 1,220,990 × 1,220,990
  4. Step 4: Simplify right side
    564,488x = 1,490,816,580,100
  5. Step 5: Solve for x
    x = 1,490,816,580,100/564,488
  6. Step 6: Final answer
    x = 2,641,006.68

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.