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Finding the Fourth Proportional to 557,544.87, 769,338.30 and 353,235.33

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Solution

The fourth proportional to 557,544.87, 769,338.30 and 353,235.33 is: 487,418.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,544.87 : 769,338.30 = 353,235.33 : x
  2. Step 2: Convert to fraction form
    557,544.87/769,338.30 = 353,235.33/x
  3. Step 3: Cross multiply
    557,544.87x = 769,338.30 × 353,235.33
  4. Step 4: Simplify right side
    557,544.87x = 271,757,469,606.77
  5. Step 5: Solve for x
    x = 271,757,469,606.77/557,544.87
  6. Step 6: Final answer
    x = 487,418.12

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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.