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Finding the Fourth Proportional to 481.88, 719.12 and 404.12

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Solution

The fourth proportional to 481.88, 719.12 and 404.12 is: 603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    481.88 : 719.12 = 404.12 : x
  2. Step 2: Convert to fraction form
    481.88/719.12 = 404.12/x
  3. Step 3: Cross multiply
    481.88x = 719.12 × 404.12
  4. Step 4: Simplify right side
    481.88x = 290,610.77
  5. Step 5: Solve for x
    x = 290,610.77/481.88
  6. Step 6: Final answer
    x = 603.08

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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.