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Finding the Fourth Proportional to 557,283.41, 769,286.52 and 376,240.56

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Solution

The fourth proportional to 557,283.41, 769,286.52 and 376,240.56 is: 519,370.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,283.41 : 769,286.52 = 376,240.56 : x
  2. Step 2: Convert to fraction form
    557,283.41/769,286.52 = 376,240.56/x
  3. Step 3: Cross multiply
    557,283.41x = 769,286.52 × 376,240.56
  4. Step 4: Simplify right side
    557,283.41x = 289,436,791,085.25
  5. Step 5: Solve for x
    x = 289,436,791,085.25/557,283.41
  6. Step 6: Final answer
    x = 519,370.91

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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.