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Finding the Third Proportional to 403,785 and 548,612

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Solution

The third proportional to 403,785 and 548,612 is: 745,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,785 : 548,612 = 548,612 : x
  2. Step 2: Convert to fraction form
    403,785/548,612 = 548,612/x
  3. Step 3: Cross multiply
    403,785x = 548,612 × 548,612
  4. Step 4: Simplify right side
    403,785x = 300,975,126,544
  5. Step 5: Solve for x
    x = 300,975,126,544/403,785
  6. Step 6: Final answer
    x = 745,384.61

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.