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Finding the Fourth Proportional to 667,593.01, 921,279.32 and 395,794

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Solution

The fourth proportional to 667,593.01, 921,279.32 and 395,794 is: 546,196.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,593.01 : 921,279.32 = 395,794 : x
  2. Step 2: Convert to fraction form
    667,593.01/921,279.32 = 395,794/x
  3. Step 3: Cross multiply
    667,593.01x = 921,279.32 × 395,794
  4. Step 4: Simplify right side
    667,593.01x = 364,636,827,180.08
  5. Step 5: Solve for x
    x = 364,636,827,180.08/667,593.01
  6. Step 6: Final answer
    x = 546,196.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.