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Finding the Fourth Proportional to 487,562.60, 672,819.39 and 269,767.82

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Solution

The fourth proportional to 487,562.60, 672,819.39 and 269,767.82 is: 372,270.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,562.60 : 672,819.39 = 269,767.82 : x
  2. Step 2: Convert to fraction form
    487,562.60/672,819.39 = 269,767.82/x
  3. Step 3: Cross multiply
    487,562.60x = 672,819.39 × 269,767.82
  4. Step 4: Simplify right side
    487,562.60x = 181,505,017,232.75
  5. Step 5: Solve for x
    x = 181,505,017,232.75/487,562.60
  6. Step 6: Final answer
    x = 372,270.18

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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.