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Finding the Fourth Proportional to 593.07, 890.22 and 431.07

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Solution

The fourth proportional to 593.07, 890.22 and 431.07 is: 647.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    593.07 : 890.22 = 431.07 : x
  2. Step 2: Convert to fraction form
    593.07/890.22 = 431.07/x
  3. Step 3: Cross multiply
    593.07x = 890.22 × 431.07
  4. Step 4: Simplify right side
    593.07x = 383,747.14
  5. Step 5: Solve for x
    x = 383,747.14/593.07
  6. Step 6: Final answer
    x = 647.05

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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.