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Finding the Fourth Proportional to 593.77, 890.47 and 389.43

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Solution

The fourth proportional to 593.77, 890.47 and 389.43 is: 584.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.77 : 890.47 = 389.43 : x
  2. Step 2: Convert to fraction form
    593.77/890.47 = 389.43/x
  3. Step 3: Cross multiply
    593.77x = 890.47 × 389.43
  4. Step 4: Simplify right side
    593.77x = 346,775.73
  5. Step 5: Solve for x
    x = 346,775.73/593.77
  6. Step 6: Final answer
    x = 584.02

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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.