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Finding the Fourth Proportional to 479.58, 719.85 and 372.54

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Solution

The fourth proportional to 479.58, 719.85 and 372.54 is: 559.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    479.58 : 719.85 = 372.54 : x
  2. Step 2: Convert to fraction form
    479.58/719.85 = 372.54/x
  3. Step 3: Cross multiply
    479.58x = 719.85 × 372.54
  4. Step 4: Simplify right side
    479.58x = 268,172.92
  5. Step 5: Solve for x
    x = 268,172.92/479.58
  6. Step 6: Final answer
    x = 559.18

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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.