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Finding the Fourth Proportional to 488,590.31, 674,238.33 and 270,789.71

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Solution

The fourth proportional to 488,590.31, 674,238.33 and 270,789.71 is: 373,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,590.31 : 674,238.33 = 270,789.71 : x
  2. Step 2: Convert to fraction form
    488,590.31/674,238.33 = 270,789.71/x
  3. Step 3: Cross multiply
    488,590.31x = 674,238.33 × 270,789.71
  4. Step 4: Simplify right side
    488,590.31x = 182,576,798,480.39
  5. Step 5: Solve for x
    x = 182,576,798,480.39/488,590.31
  6. Step 6: Final answer
    x = 373,680.76

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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.