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Finding the Fourth Proportional to 479,795, 662,175.48 and 278,591

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Solution

The fourth proportional to 479,795, 662,175.48 and 278,591 is: 384,489.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,795 : 662,175.48 = 278,591 : x
  2. Step 2: Convert to fraction form
    479,795/662,175.48 = 278,591/x
  3. Step 3: Cross multiply
    479,795x = 662,175.48 × 278,591
  4. Step 4: Simplify right side
    479,795x = 184,476,129,148.68
  5. Step 5: Solve for x
    x = 184,476,129,148.68/479,795
  6. Step 6: Final answer
    x = 384,489.48

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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.