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Finding the Fourth Proportional to 562.99, 844.59 and 388.03

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Solution

The fourth proportional to 562.99, 844.59 and 388.03 is: 582.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.99 : 844.59 = 388.03 : x
  2. Step 2: Convert to fraction form
    562.99/844.59 = 388.03/x
  3. Step 3: Cross multiply
    562.99x = 844.59 × 388.03
  4. Step 4: Simplify right side
    562.99x = 327,726.26
  5. Step 5: Solve for x
    x = 327,726.26/562.99
  6. Step 6: Final answer
    x = 582.12

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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.