Home / 455,734.26-628,650.45-274,320.18

Finding the Fourth Proportional to 455,734.26, 628,650.45 and 274,320.18

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Solution

The fourth proportional to 455,734.26, 628,650.45 and 274,320.18 is: 378,403.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,734.26 : 628,650.45 = 274,320.18 : x
  2. Step 2: Convert to fraction form
    455,734.26/628,650.45 = 274,320.18/x
  3. Step 3: Cross multiply
    455,734.26x = 628,650.45 × 274,320.18
  4. Step 4: Simplify right side
    455,734.26x = 172,451,504,601.08
  5. Step 5: Solve for x
    x = 172,451,504,601.08/455,734.26
  6. Step 6: Final answer
    x = 378,403.64

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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.