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Finding the Fourth Proportional to 404.62, 605.90 and 370.79

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Solution

The fourth proportional to 404.62, 605.90 and 370.79 is: 555.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.62 : 605.90 = 370.79 : x
  2. Step 2: Convert to fraction form
    404.62/605.90 = 370.79/x
  3. Step 3: Cross multiply
    404.62x = 605.90 × 370.79
  4. Step 4: Simplify right side
    404.62x = 224,659.56
  5. Step 5: Solve for x
    x = 224,659.56/404.62
  6. Step 6: Final answer
    x = 555.24

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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.