Home / 854,429.41-1,280,889.86-322,324.11

Finding the Fourth Proportional to 854,429.41, 1,280,889.86 and 322,324.11

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Solution

The fourth proportional to 854,429.41, 1,280,889.86 and 322,324.11 is: 483,201.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,429.41 : 1,280,889.86 = 322,324.11 : x
  2. Step 2: Convert to fraction form
    854,429.41/1,280,889.86 = 322,324.11/x
  3. Step 3: Cross multiply
    854,429.41x = 1,280,889.86 × 322,324.11
  4. Step 4: Simplify right side
    854,429.41x = 412,861,682,520.90
  5. Step 5: Solve for x
    x = 412,861,682,520.90/854,429.41
  6. Step 6: Final answer
    x = 483,201.63

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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.