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Finding the Third Proportional to 1,159,138 and 2,489,671

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Solution

The third proportional to 1,159,138 and 2,489,671 is: 5,347,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,138 : 2,489,671 = 2,489,671 : x
  2. Step 2: Convert to fraction form
    1,159,138/2,489,671 = 2,489,671/x
  3. Step 3: Cross multiply
    1,159,138x = 2,489,671 × 2,489,671
  4. Step 4: Simplify right side
    1,159,138x = 6,198,461,688,241
  5. Step 5: Solve for x
    x = 6,198,461,688,241/1,159,138
  6. Step 6: Final answer
    x = 5,347,475.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.