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Finding the Fourth Proportional to 575.55, 794.39 and 379.08

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Solution

The fourth proportional to 575.55, 794.39 and 379.08 is: 523.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.55 : 794.39 = 379.08 : x
  2. Step 2: Convert to fraction form
    575.55/794.39 = 379.08/x
  3. Step 3: Cross multiply
    575.55x = 794.39 × 379.08
  4. Step 4: Simplify right side
    575.55x = 301,135.47
  5. Step 5: Solve for x
    x = 301,135.47/575.55
  6. Step 6: Final answer
    x = 523.21

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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.