Home / 455,839.52-629,117.28-274,645.76

Finding the Fourth Proportional to 455,839.52, 629,117.28 and 274,645.76

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Solution

The fourth proportional to 455,839.52, 629,117.28 and 274,645.76 is: 379,046.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,839.52 : 629,117.28 = 274,645.76 : x
  2. Step 2: Convert to fraction form
    455,839.52/629,117.28 = 274,645.76/x
  3. Step 3: Cross multiply
    455,839.52x = 629,117.28 × 274,645.76
  4. Step 4: Simplify right side
    455,839.52x = 172,784,393,494.73
  5. Step 5: Solve for x
    x = 172,784,393,494.73/455,839.52
  6. Step 6: Final answer
    x = 379,046.54

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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.