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Finding the Fourth Proportional to 593.70, 890.55 and 319.92

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Solution

The fourth proportional to 593.70, 890.55 and 319.92 is: 479.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.70 : 890.55 = 319.92 : x
  2. Step 2: Convert to fraction form
    593.70/890.55 = 319.92/x
  3. Step 3: Cross multiply
    593.70x = 890.55 × 319.92
  4. Step 4: Simplify right side
    593.70x = 284,904.76
  5. Step 5: Solve for x
    x = 284,904.76/593.70
  6. Step 6: Final answer
    x = 479.88

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Double scale
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Similar ratio
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1.5x scale

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.