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Finding the Fourth Proportional to 590.34, 886.08 and 427.26

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Solution

The fourth proportional to 590.34, 886.08 and 427.26 is: 641.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.34 : 886.08 = 427.26 : x
  2. Step 2: Convert to fraction form
    590.34/886.08 = 427.26/x
  3. Step 3: Cross multiply
    590.34x = 886.08 × 427.26
  4. Step 4: Simplify right side
    590.34x = 378,586.54
  5. Step 5: Solve for x
    x = 378,586.54/590.34
  6. Step 6: Final answer
    x = 641.30

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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.