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Finding the Fourth Proportional to 593.99, 890.19 and 319.49

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Solution

The fourth proportional to 593.99, 890.19 and 319.49 is: 478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.99 : 890.19 = 319.49 : x
  2. Step 2: Convert to fraction form
    593.99/890.19 = 319.49/x
  3. Step 3: Cross multiply
    593.99x = 890.19 × 319.49
  4. Step 4: Simplify right side
    593.99x = 284,402.35
  5. Step 5: Solve for x
    x = 284,402.35/593.99
  6. Step 6: Final answer
    x = 478.80

Related Problems

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Half scale
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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.