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Finding the Third Proportional to 939,925.50 and 1,987,000.50

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Solution

The third proportional to 939,925.50 and 1,987,000.50 is: 4,200,514.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,925.50 : 1,987,000.50 = 1,987,000.50 : x
  2. Step 2: Convert to fraction form
    939,925.50/1,987,000.50 = 1,987,000.50/x
  3. Step 3: Cross multiply
    939,925.50x = 1,987,000.50 × 1,987,000.50
  4. Step 4: Simplify right side
    939,925.50x = 3,948,170,987,000.25
  5. Step 5: Solve for x
    x = 3,948,170,987,000.25/939,925.50
  6. Step 6: Final answer
    x = 4,200,514.81

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.