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Finding the Fourth Proportional to 593.74, 890.88 and 486.28

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Solution

The fourth proportional to 593.74, 890.88 and 486.28 is: 729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.74 : 890.88 = 486.28 : x
  2. Step 2: Convert to fraction form
    593.74/890.88 = 486.28/x
  3. Step 3: Cross multiply
    593.74x = 890.88 × 486.28
  4. Step 4: Simplify right side
    593.74x = 433,217.13
  5. Step 5: Solve for x
    x = 433,217.13/593.74
  6. Step 6: Final answer
    x = 729.64

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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.