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Finding the Fourth Proportional to 503,399.97, 694,535.58 and 285,572.79

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Solution

The fourth proportional to 503,399.97, 694,535.58 and 285,572.79 is: 394,001.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,399.97 : 694,535.58 = 285,572.79 : x
  2. Step 2: Convert to fraction form
    503,399.97/694,535.58 = 285,572.79/x
  3. Step 3: Cross multiply
    503,399.97x = 694,535.58 × 285,572.79
  4. Step 4: Simplify right side
    503,399.97x = 198,340,463,334.87
  5. Step 5: Solve for x
    x = 198,340,463,334.87/503,399.97
  6. Step 6: Final answer
    x = 394,001.74

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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.