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Finding the Third Proportional to 858,300 and 1,864,079

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Solution

The third proportional to 858,300 and 1,864,079 is: 4,048,456.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,300 : 1,864,079 = 1,864,079 : x
  2. Step 2: Convert to fraction form
    858,300/1,864,079 = 1,864,079/x
  3. Step 3: Cross multiply
    858,300x = 1,864,079 × 1,864,079
  4. Step 4: Simplify right side
    858,300x = 3,474,790,518,241
  5. Step 5: Solve for x
    x = 3,474,790,518,241/858,300
  6. Step 6: Final answer
    x = 4,048,456.85

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.