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Finding the Fourth Proportional to 593.74, 890.62 and 389.61

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Solution

The fourth proportional to 593.74, 890.62 and 389.61 is: 584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.74 : 890.62 = 389.61 : x
  2. Step 2: Convert to fraction form
    593.74/890.62 = 389.61/x
  3. Step 3: Cross multiply
    593.74x = 890.62 × 389.61
  4. Step 4: Simplify right side
    593.74x = 346,994.46
  5. Step 5: Solve for x
    x = 346,994.46/593.74
  6. Step 6: Final answer
    x = 584.42

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Double scale
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Similar ratio
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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.