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Finding the Fourth Proportional to 1,644.06, 2,466.06 and 411.47

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Solution

The fourth proportional to 1,644.06, 2,466.06 and 411.47 is: 617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.06 : 2,466.06 = 411.47 : x
  2. Step 2: Convert to fraction form
    1,644.06/2,466.06 = 411.47/x
  3. Step 3: Cross multiply
    1,644.06x = 2,466.06 × 411.47
  4. Step 4: Simplify right side
    1,644.06x = 1,014,709.71
  5. Step 5: Solve for x
    x = 1,014,709.71/1,644.06
  6. Step 6: Final answer
    x = 617.20

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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.