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Finding the Third Proportional to 910,138.50 and 1,979,121

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Solution

The third proportional to 910,138.50 and 1,979,121 is: 4,303,652.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,138.50 : 1,979,121 = 1,979,121 : x
  2. Step 2: Convert to fraction form
    910,138.50/1,979,121 = 1,979,121/x
  3. Step 3: Cross multiply
    910,138.50x = 1,979,121 × 1,979,121
  4. Step 4: Simplify right side
    910,138.50x = 3,916,919,932,641
  5. Step 5: Solve for x
    x = 3,916,919,932,641/910,138.50
  6. Step 6: Final answer
    x = 4,303,652.61

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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.