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Finding the Third Proportional to 315,042 and 682,572

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Solution

The third proportional to 315,042 and 682,572 is: 1,478,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,042 : 682,572 = 682,572 : x
  2. Step 2: Convert to fraction form
    315,042/682,572 = 682,572/x
  3. Step 3: Cross multiply
    315,042x = 682,572 × 682,572
  4. Step 4: Simplify right side
    315,042x = 465,904,535,184
  5. Step 5: Solve for x
    x = 465,904,535,184/315,042
  6. Step 6: Final answer
    x = 1,478,864.83

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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.