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Finding the Third Proportional to 1,387,878.75 and 2,070,306

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Solution

The third proportional to 1,387,878.75 and 2,070,306 is: 3,088,286.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,878.75 : 2,070,306 = 2,070,306 : x
  2. Step 2: Convert to fraction form
    1,387,878.75/2,070,306 = 2,070,306/x
  3. Step 3: Cross multiply
    1,387,878.75x = 2,070,306 × 2,070,306
  4. Step 4: Simplify right side
    1,387,878.75x = 4,286,166,933,636
  5. Step 5: Solve for x
    x = 4,286,166,933,636/1,387,878.75
  6. Step 6: Final answer
    x = 3,088,286.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.