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Finding the Fourth Proportional to 1,196.55, 1,794.99 and 579.74

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Solution

The fourth proportional to 1,196.55, 1,794.99 and 579.74 is: 869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.55 : 1,794.99 = 579.74 : x
  2. Step 2: Convert to fraction form
    1,196.55/1,794.99 = 579.74/x
  3. Step 3: Cross multiply
    1,196.55x = 1,794.99 × 579.74
  4. Step 4: Simplify right side
    1,196.55x = 1,040,627.50
  5. Step 5: Solve for x
    x = 1,040,627.50/1,196.55
  6. Step 6: Final answer
    x = 869.69

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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.