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Finding the Fourth Proportional to 579.07, 867.59 and 481.00

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Solution

The fourth proportional to 579.07, 867.59 and 481.00 is: 720.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.07 : 867.59 = 481.00 : x
  2. Step 2: Convert to fraction form
    579.07/867.59 = 481.00/x
  3. Step 3: Cross multiply
    579.07x = 867.59 × 481.00
  4. Step 4: Simplify right side
    579.07x = 417,309.51
  5. Step 5: Solve for x
    x = 417,309.51/579.07
  6. Step 6: Final answer
    x = 720.65

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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.