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Finding the Fourth Proportional to 557,282.58, 769,285.42 and 376,239.76

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Solution

The fourth proportional to 557,282.58, 769,285.42 and 376,239.76 is: 519,369.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,282.58 : 769,285.42 = 376,239.76 : x
  2. Step 2: Convert to fraction form
    557,282.58/769,285.42 = 376,239.76/x
  3. Step 3: Cross multiply
    557,282.58x = 769,285.42 × 376,239.76
  4. Step 4: Simplify right side
    557,282.58x = 289,435,761,792.30
  5. Step 5: Solve for x
    x = 289,435,761,792.30/557,282.58
  6. Step 6: Final answer
    x = 519,369.84

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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.