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Finding the Third Proportional to 1,369,653.75 and 2,129,085

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Solution

The third proportional to 1,369,653.75 and 2,129,085 is: 3,309,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,653.75 : 2,129,085 = 2,129,085 : x
  2. Step 2: Convert to fraction form
    1,369,653.75/2,129,085 = 2,129,085/x
  3. Step 3: Cross multiply
    1,369,653.75x = 2,129,085 × 2,129,085
  4. Step 4: Simplify right side
    1,369,653.75x = 4,533,002,937,225
  5. Step 5: Solve for x
    x = 4,533,002,937,225/1,369,653.75
  6. Step 6: Final answer
    x = 3,309,597.73

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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.