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Finding the Fourth Proportional to 880.44, 1,215.06 and 482.10

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Solution

The fourth proportional to 880.44, 1,215.06 and 482.10 is: 665.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    880.44 : 1,215.06 = 482.10 : x
  2. Step 2: Convert to fraction form
    880.44/1,215.06 = 482.10/x
  3. Step 3: Cross multiply
    880.44x = 1,215.06 × 482.10
  4. Step 4: Simplify right side
    880.44x = 585,780.43
  5. Step 5: Solve for x
    x = 585,780.43/880.44
  6. Step 6: Final answer
    x = 665.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.