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Finding the Third Proportional to 339,255 and 745,578

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Solution

The third proportional to 339,255 and 745,578 is: 1,638,550.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,255 : 745,578 = 745,578 : x
  2. Step 2: Convert to fraction form
    339,255/745,578 = 745,578/x
  3. Step 3: Cross multiply
    339,255x = 745,578 × 745,578
  4. Step 4: Simplify right side
    339,255x = 555,886,554,084
  5. Step 5: Solve for x
    x = 555,886,554,084/339,255
  6. Step 6: Final answer
    x = 1,638,550.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.