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Finding the Fourth Proportional to 491.41, 673.75 and 482.63

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Solution

The fourth proportional to 491.41, 673.75 and 482.63 is: 661.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    491.41 : 673.75 = 482.63 : x
  2. Step 2: Convert to fraction form
    491.41/673.75 = 482.63/x
  3. Step 3: Cross multiply
    491.41x = 673.75 × 482.63
  4. Step 4: Simplify right side
    491.41x = 325,172.44
  5. Step 5: Solve for x
    x = 325,172.44/491.41
  6. Step 6: Final answer
    x = 661.72

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.