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Finding the Fourth Proportional to 593.72, 889.89 and 387.93

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Solution

The fourth proportional to 593.72, 889.89 and 387.93 is: 581.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.72 : 889.89 = 387.93 : x
  2. Step 2: Convert to fraction form
    593.72/889.89 = 387.93/x
  3. Step 3: Cross multiply
    593.72x = 889.89 × 387.93
  4. Step 4: Simplify right side
    593.72x = 345,215.03
  5. Step 5: Solve for x
    x = 345,215.03/593.72
  6. Step 6: Final answer
    x = 581.45

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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.