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Finding the Fourth Proportional to 576,189.82, 795,046.86 and 321,540.40

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Solution

The fourth proportional to 576,189.82, 795,046.86 and 321,540.40 is: 443,672.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,189.82 : 795,046.86 = 321,540.40 : x
  2. Step 2: Convert to fraction form
    576,189.82/795,046.86 = 321,540.40/x
  3. Step 3: Cross multiply
    576,189.82x = 795,046.86 × 321,540.40
  4. Step 4: Simplify right side
    576,189.82x = 255,639,685,383.14
  5. Step 5: Solve for x
    x = 255,639,685,383.14/576,189.82
  6. Step 6: Final answer
    x = 443,672.69

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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.