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Finding the Third Proportional to 257,007 and 556,917.75

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Solution

The third proportional to 257,007 and 556,917.75 is: 1,206,805.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,007 : 556,917.75 = 556,917.75 : x
  2. Step 2: Convert to fraction form
    257,007/556,917.75 = 556,917.75/x
  3. Step 3: Cross multiply
    257,007x = 556,917.75 × 556,917.75
  4. Step 4: Simplify right side
    257,007x = 310,157,380,265.06
  5. Step 5: Solve for x
    x = 310,157,380,265.06/257,007
  6. Step 6: Final answer
    x = 1,206,805.19

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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.