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Finding the Fourth Proportional to 487,394.73, 672,552.94 and 269,568.79

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Solution

The fourth proportional to 487,394.73, 672,552.94 and 269,568.79 is: 371,976.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,394.73 : 672,552.94 = 269,568.79 : x
  2. Step 2: Convert to fraction form
    487,394.73/672,552.94 = 269,568.79/x
  3. Step 3: Cross multiply
    487,394.73x = 672,552.94 × 269,568.79
  4. Step 4: Simplify right side
    487,394.73x = 181,299,279,724.67
  5. Step 5: Solve for x
    x = 181,299,279,724.67/487,394.73
  6. Step 6: Final answer
    x = 371,976.29

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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.