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Finding the Fourth Proportional to 481.87, 718.75 and 403.93

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Solution

The fourth proportional to 481.87, 718.75 and 403.93 is: 602.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.87 : 718.75 = 403.93 : x
  2. Step 2: Convert to fraction form
    481.87/718.75 = 403.93/x
  3. Step 3: Cross multiply
    481.87x = 718.75 × 403.93
  4. Step 4: Simplify right side
    481.87x = 290,324.69
  5. Step 5: Solve for x
    x = 290,324.69/481.87
  6. Step 6: Final answer
    x = 602.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.