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Finding the Fourth Proportional to 577.87, 867.77 and 481.51

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Solution

The fourth proportional to 577.87, 867.77 and 481.51 is: 723.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    577.87 : 867.77 = 481.51 : x
  2. Step 2: Convert to fraction form
    577.87/867.77 = 481.51/x
  3. Step 3: Cross multiply
    577.87x = 867.77 × 481.51
  4. Step 4: Simplify right side
    577.87x = 417,839.93
  5. Step 5: Solve for x
    x = 417,839.93/577.87
  6. Step 6: Final answer
    x = 723.07

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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.