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Finding the Fourth Proportional to 557,277.59, 769,278.49 and 376,234.74

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Solution

The fourth proportional to 557,277.59, 769,278.49 and 376,234.74 is: 519,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,277.59 : 769,278.49 = 376,234.74 : x
  2. Step 2: Convert to fraction form
    557,277.59/769,278.49 = 376,234.74/x
  3. Step 3: Cross multiply
    557,277.59x = 769,278.49 × 376,234.74
  4. Step 4: Simplify right side
    557,277.59x = 289,429,290,791.57
  5. Step 5: Solve for x
    x = 289,429,290,791.57/557,277.59
  6. Step 6: Final answer
    x = 519,362.87

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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.