Home / 455,218.95-628,453.77-273,975.39

Finding the Fourth Proportional to 455,218.95, 628,453.77 and 273,975.39

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Solution

The fourth proportional to 455,218.95, 628,453.77 and 273,975.39 is: 378,237.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,218.95 : 628,453.77 = 273,975.39 : x
  2. Step 2: Convert to fraction form
    455,218.95/628,453.77 = 273,975.39/x
  3. Step 3: Cross multiply
    455,218.95x = 628,453.77 × 273,975.39
  4. Step 4: Simplify right side
    455,218.95x = 172,180,866,732.72
  5. Step 5: Solve for x
    x = 172,180,866,732.72/455,218.95
  6. Step 6: Final answer
    x = 378,237.48

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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.