Home / 455,046.31-682,015.96-321,964.93

Finding the Fourth Proportional to 455,046.31, 682,015.96 and 321,964.93

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Solution

The fourth proportional to 455,046.31, 682,015.96 and 321,964.93 is: 482,555.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,046.31 : 682,015.96 = 321,964.93 : x
  2. Step 2: Convert to fraction form
    455,046.31/682,015.96 = 321,964.93/x
  3. Step 3: Cross multiply
    455,046.31x = 682,015.96 × 321,964.93
  4. Step 4: Simplify right side
    455,046.31x = 219,585,220,820.28
  5. Step 5: Solve for x
    x = 219,585,220,820.28/455,046.31
  6. Step 6: Final answer
    x = 482,555.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.