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Finding the Fourth Proportional to 587.69, 882.30 and 393.93

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Solution

The fourth proportional to 587.69, 882.30 and 393.93 is: 591.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.69 : 882.30 = 393.93 : x
  2. Step 2: Convert to fraction form
    587.69/882.30 = 393.93/x
  3. Step 3: Cross multiply
    587.69x = 882.30 × 393.93
  4. Step 4: Simplify right side
    587.69x = 347,562.47
  5. Step 5: Solve for x
    x = 347,562.47/587.69
  6. Step 6: Final answer
    x = 591.41

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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.