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Finding the Third Proportional to 1,139,919.75 and 1,778,895

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Solution

The third proportional to 1,139,919.75 and 1,778,895 is: 2,776,044.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,919.75 : 1,778,895 = 1,778,895 : x
  2. Step 2: Convert to fraction form
    1,139,919.75/1,778,895 = 1,778,895/x
  3. Step 3: Cross multiply
    1,139,919.75x = 1,778,895 × 1,778,895
  4. Step 4: Simplify right side
    1,139,919.75x = 3,164,467,421,025
  5. Step 5: Solve for x
    x = 3,164,467,421,025/1,139,919.75
  6. Step 6: Final answer
    x = 2,776,044.03

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.