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Finding the Third Proportional to 358,910 and 522,786

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Solution

The third proportional to 358,910 and 522,786 is: 761,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,910 : 522,786 = 522,786 : x
  2. Step 2: Convert to fraction form
    358,910/522,786 = 522,786/x
  3. Step 3: Cross multiply
    358,910x = 522,786 × 522,786
  4. Step 4: Simplify right side
    358,910x = 273,305,201,796
  5. Step 5: Solve for x
    x = 273,305,201,796/358,910
  6. Step 6: Final answer
    x = 761,486.73

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.