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Finding the Fourth Proportional to 1,644.79, 2,467.47 and 549.04

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Solution

The fourth proportional to 1,644.79, 2,467.47 and 549.04 is: 823.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,644.79 : 2,467.47 = 549.04 : x
  2. Step 2: Convert to fraction form
    1,644.79/2,467.47 = 549.04/x
  3. Step 3: Cross multiply
    1,644.79x = 2,467.47 × 549.04
  4. Step 4: Simplify right side
    1,644.79x = 1,354,739.73
  5. Step 5: Solve for x
    x = 1,354,739.73/1,644.79
  6. Step 6: Final answer
    x = 823.66

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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.