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Finding the Fourth Proportional to 566.14, 847.43 and 389.41

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Solution

The fourth proportional to 566.14, 847.43 and 389.41 is: 582.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    566.14 : 847.43 = 389.41 : x
  2. Step 2: Convert to fraction form
    566.14/847.43 = 389.41/x
  3. Step 3: Cross multiply
    566.14x = 847.43 × 389.41
  4. Step 4: Simplify right side
    566.14x = 329,995.93
  5. Step 5: Solve for x
    x = 329,995.93/566.14
  6. Step 6: Final answer
    x = 582.89

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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.