Home / 455,844.70-629,087.67-274,613.47

Finding the Fourth Proportional to 455,844.70, 629,087.67 and 274,613.47

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Solution

The fourth proportional to 455,844.70, 629,087.67 and 274,613.47 is: 378,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,844.70 : 629,087.67 = 274,613.47 : x
  2. Step 2: Convert to fraction form
    455,844.70/629,087.67 = 274,613.47/x
  3. Step 3: Cross multiply
    455,844.70x = 629,087.67 × 274,613.47
  4. Step 4: Simplify right side
    455,844.70x = 172,755,947,992.92
  5. Step 5: Solve for x
    x = 172,755,947,992.92/455,844.70
  6. Step 6: Final answer
    x = 378,979.83

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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.