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Finding the Third Proportional to 455,029.50 and 990,765

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Solution

The third proportional to 455,029.50 and 990,765 is: 2,157,256.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,029.50 : 990,765 = 990,765 : x
  2. Step 2: Convert to fraction form
    455,029.50/990,765 = 990,765/x
  3. Step 3: Cross multiply
    455,029.50x = 990,765 × 990,765
  4. Step 4: Simplify right side
    455,029.50x = 981,615,285,225
  5. Step 5: Solve for x
    x = 981,615,285,225/455,029.50
  6. Step 6: Final answer
    x = 2,157,256.37

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.