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Finding the Fourth Proportional to 455,954.97, 682,904.52 and 219,474.66

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Solution

The fourth proportional to 455,954.97, 682,904.52 and 219,474.66 is: 328,717.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,954.97 : 682,904.52 = 219,474.66 : x
  2. Step 2: Convert to fraction form
    455,954.97/682,904.52 = 219,474.66/x
  3. Step 3: Cross multiply
    455,954.97x = 682,904.52 × 219,474.66
  4. Step 4: Simplify right side
    455,954.97x = 149,880,237,339.46
  5. Step 5: Solve for x
    x = 149,880,237,339.46/455,954.97
  6. Step 6: Final answer
    x = 328,717.19

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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.