Home / 455,272.60-682,908.90-219,076.60

Finding the Fourth Proportional to 455,272.60, 682,908.90 and 219,076.60

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Solution

The fourth proportional to 455,272.60, 682,908.90 and 219,076.60 is: 328,614.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,272.60 : 682,908.90 = 219,076.60 : x
  2. Step 2: Convert to fraction form
    455,272.60/682,908.90 = 219,076.60/x
  3. Step 3: Cross multiply
    455,272.60x = 682,908.90 × 219,076.60
  4. Step 4: Simplify right side
    455,272.60x = 149,609,359,921.74
  5. Step 5: Solve for x
    x = 149,609,359,921.74/455,272.60
  6. Step 6: Final answer
    x = 328,614.90

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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.