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Finding the Fourth Proportional to 557,282.34, 769,285.07 and 376,239.51

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Solution

The fourth proportional to 557,282.34, 769,285.07 and 376,239.51 is: 519,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,282.34 : 769,285.07 = 376,239.51 : x
  2. Step 2: Convert to fraction form
    557,282.34/769,285.07 = 376,239.51/x
  3. Step 3: Cross multiply
    557,282.34x = 769,285.07 × 376,239.51
  4. Step 4: Simplify right side
    557,282.34x = 289,435,437,787.12
  5. Step 5: Solve for x
    x = 289,435,437,787.12/557,282.34
  6. Step 6: Final answer
    x = 519,369.48

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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.