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Finding the Third Proportional to 401,468 and 587,126

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Solution

The third proportional to 401,468 and 587,126 is: 858,641.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,468 : 587,126 = 587,126 : x
  2. Step 2: Convert to fraction form
    401,468/587,126 = 587,126/x
  3. Step 3: Cross multiply
    401,468x = 587,126 × 587,126
  4. Step 4: Simplify right side
    401,468x = 344,716,939,876
  5. Step 5: Solve for x
    x = 344,716,939,876/401,468
  6. Step 6: Final answer
    x = 858,641.14

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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.