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Finding the Third Proportional to 485,389 and 759,772

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Solution

The third proportional to 485,389 and 759,772 is: 1,189,259.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,389 : 759,772 = 759,772 : x
  2. Step 2: Convert to fraction form
    485,389/759,772 = 759,772/x
  3. Step 3: Cross multiply
    485,389x = 759,772 × 759,772
  4. Step 4: Simplify right side
    485,389x = 577,253,491,984
  5. Step 5: Solve for x
    x = 577,253,491,984/485,389
  6. Step 6: Final answer
    x = 1,189,259.53

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.