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Finding the Fourth Proportional to 595, 891.24 and 388.96

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Solution

The fourth proportional to 595, 891.24 and 388.96 is: 582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    595 : 891.24 = 388.96 : x
  2. Step 2: Convert to fraction form
    595/891.24 = 388.96/x
  3. Step 3: Cross multiply
    595x = 891.24 × 388.96
  4. Step 4: Simplify right side
    595x = 346,656.71
  5. Step 5: Solve for x
    x = 346,656.71/595
  6. Step 6: Final answer
    x = 582.62

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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.