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Finding the Third Proportional to 1,388,034.75 and 1,890,961.88

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Solution

The third proportional to 1,388,034.75 and 1,890,961.88 is: 2,576,114.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,034.75 : 1,890,961.88 = 1,890,961.88 : x
  2. Step 2: Convert to fraction form
    1,388,034.75/1,890,961.88 = 1,890,961.88/x
  3. Step 3: Cross multiply
    1,388,034.75x = 1,890,961.88 × 1,890,961.88
  4. Step 4: Simplify right side
    1,388,034.75x = 3,575,736,812,703.52
  5. Step 5: Solve for x
    x = 3,575,736,812,703.52/1,388,034.75
  6. Step 6: Final answer
    x = 2,576,114.76

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.