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Finding the Fourth Proportional to 593.31, 890.58 and 319.63

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Solution

The fourth proportional to 593.31, 890.58 and 319.63 is: 479.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.31 : 890.58 = 319.63 : x
  2. Step 2: Convert to fraction form
    593.31/890.58 = 319.63/x
  3. Step 3: Cross multiply
    593.31x = 890.58 × 319.63
  4. Step 4: Simplify right side
    593.31x = 284,656.09
  5. Step 5: Solve for x
    x = 284,656.09/593.31
  6. Step 6: Final answer
    x = 479.78

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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.