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Finding the Fourth Proportional to 523.03, 784.56 and 291.79

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Solution

The fourth proportional to 523.03, 784.56 and 291.79 is: 437.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    523.03 : 784.56 = 291.79 : x
  2. Step 2: Convert to fraction form
    523.03/784.56 = 291.79/x
  3. Step 3: Cross multiply
    523.03x = 784.56 × 291.79
  4. Step 4: Simplify right side
    523.03x = 228,926.76
  5. Step 5: Solve for x
    x = 228,926.76/523.03
  6. Step 6: Final answer
    x = 437.69

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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.