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Finding the Fourth Proportional to 571.62, 788.74 and 335.54

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Solution

The fourth proportional to 571.62, 788.74 and 335.54 is: 462.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.62 : 788.74 = 335.54 : x
  2. Step 2: Convert to fraction form
    571.62/788.74 = 335.54/x
  3. Step 3: Cross multiply
    571.62x = 788.74 × 335.54
  4. Step 4: Simplify right side
    571.62x = 264,653.82
  5. Step 5: Solve for x
    x = 264,653.82/571.62
  6. Step 6: Final answer
    x = 462.99

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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.