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Finding the Fourth Proportional to 855.56, 1,180.08 and 593.52

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Solution

The fourth proportional to 855.56, 1,180.08 and 593.52 is: 818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    855.56 : 1,180.08 = 593.52 : x
  2. Step 2: Convert to fraction form
    855.56/1,180.08 = 593.52/x
  3. Step 3: Cross multiply
    855.56x = 1,180.08 × 593.52
  4. Step 4: Simplify right side
    855.56x = 700,401.08
  5. Step 5: Solve for x
    x = 700,401.08/855.56
  6. Step 6: Final answer
    x = 818.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.