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Finding the Fourth Proportional to 557,282.91, 769,285.83 and 376,240.06

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Solution

The fourth proportional to 557,282.91, 769,285.83 and 376,240.06 is: 519,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,282.91 : 769,285.83 = 376,240.06 : x
  2. Step 2: Convert to fraction form
    557,282.91/769,285.83 = 376,240.06/x
  3. Step 3: Cross multiply
    557,282.91x = 769,285.83 × 376,240.06
  4. Step 4: Simplify right side
    557,282.91x = 289,436,146,836.35
  5. Step 5: Solve for x
    x = 289,436,146,836.35/557,282.91
  6. Step 6: Final answer
    x = 519,370.22

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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.