Home / 1,222.36-1,832.90-528.66

Finding the Fourth Proportional to 1,222.36, 1,832.90 and 528.66

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Solution

The fourth proportional to 1,222.36, 1,832.90 and 528.66 is: 792.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222.36 : 1,832.90 = 528.66 : x
  2. Step 2: Convert to fraction form
    1,222.36/1,832.90 = 528.66/x
  3. Step 3: Cross multiply
    1,222.36x = 1,832.90 × 528.66
  4. Step 4: Simplify right side
    1,222.36x = 968,978.27
  5. Step 5: Solve for x
    x = 968,978.27/1,222.36
  6. Step 6: Final answer
    x = 792.71

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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.