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Finding the Fourth Proportional to 529.56, 792.44 and 383.48

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Solution

The fourth proportional to 529.56, 792.44 and 383.48 is: 573.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.56 : 792.44 = 383.48 : x
  2. Step 2: Convert to fraction form
    529.56/792.44 = 383.48/x
  3. Step 3: Cross multiply
    529.56x = 792.44 × 383.48
  4. Step 4: Simplify right side
    529.56x = 303,884.89
  5. Step 5: Solve for x
    x = 303,884.89/529.56
  6. Step 6: Final answer
    x = 573.84

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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.