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Finding the Fourth Proportional to 844.90, 1,266.94 and 433.83

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Solution

The fourth proportional to 844.90, 1,266.94 and 433.83 is: 650.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.90 : 1,266.94 = 433.83 : x
  2. Step 2: Convert to fraction form
    844.90/1,266.94 = 433.83/x
  3. Step 3: Cross multiply
    844.90x = 1,266.94 × 433.83
  4. Step 4: Simplify right side
    844.90x = 549,636.58
  5. Step 5: Solve for x
    x = 549,636.58/844.90
  6. Step 6: Final answer
    x = 650.53

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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.