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Finding the Third Proportional to 909,987 and 1,427,379

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Solution

The third proportional to 909,987 and 1,427,379 is: 2,238,944.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,987 : 1,427,379 = 1,427,379 : x
  2. Step 2: Convert to fraction form
    909,987/1,427,379 = 1,427,379/x
  3. Step 3: Cross multiply
    909,987x = 1,427,379 × 1,427,379
  4. Step 4: Simplify right side
    909,987x = 2,037,410,809,641
  5. Step 5: Solve for x
    x = 2,037,410,809,641/909,987
  6. Step 6: Final answer
    x = 2,238,944.96

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.