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Finding the Fourth Proportional to 588.13, 882.32 and 405.61

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Solution

The fourth proportional to 588.13, 882.32 and 405.61 is: 608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    588.13 : 882.32 = 405.61 : x
  2. Step 2: Convert to fraction form
    588.13/882.32 = 405.61/x
  3. Step 3: Cross multiply
    588.13x = 882.32 × 405.61
  4. Step 4: Simplify right side
    588.13x = 357,877.82
  5. Step 5: Solve for x
    x = 357,877.82/588.13
  6. Step 6: Final answer
    x = 608.50

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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.