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Finding the Fourth Proportional to 573.44, 793.43 and 499.91

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Solution

The fourth proportional to 573.44, 793.43 and 499.91 is: 691.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    573.44 : 793.43 = 499.91 : x
  2. Step 2: Convert to fraction form
    573.44/793.43 = 499.91/x
  3. Step 3: Cross multiply
    573.44x = 793.43 × 499.91
  4. Step 4: Simplify right side
    573.44x = 396,646.82
  5. Step 5: Solve for x
    x = 396,646.82/573.44
  6. Step 6: Final answer
    x = 691.69

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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.