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Finding the Third Proportional to 1,690,219.13 and 2,618,825.81

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Solution

The third proportional to 1,690,219.13 and 2,618,825.81 is: 4,057,609.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,690,219.13 : 2,618,825.81 = 2,618,825.81 : x
  2. Step 2: Convert to fraction form
    1,690,219.13/2,618,825.81 = 2,618,825.81/x
  3. Step 3: Cross multiply
    1,690,219.13x = 2,618,825.81 × 2,618,825.81
  4. Step 4: Simplify right side
    1,690,219.13x = 6,858,248,636,216.29
  5. Step 5: Solve for x
    x = 6,858,248,636,216.29/1,690,219.13
  6. Step 6: Final answer
    x = 4,057,609.18

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.