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Finding the Fourth Proportional to 593.54, 889.28 and 478.72

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Solution

The fourth proportional to 593.54, 889.28 and 478.72 is: 717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.54 : 889.28 = 478.72 : x
  2. Step 2: Convert to fraction form
    593.54/889.28 = 478.72/x
  3. Step 3: Cross multiply
    593.54x = 889.28 × 478.72
  4. Step 4: Simplify right side
    593.54x = 425,716.12
  5. Step 5: Solve for x
    x = 425,716.12/593.54
  6. Step 6: Final answer
    x = 717.25

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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.