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Finding the Fourth Proportional to 844.25, 1,267.54 and 433.67

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Solution

The fourth proportional to 844.25, 1,267.54 and 433.67 is: 651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.25 : 1,267.54 = 433.67 : x
  2. Step 2: Convert to fraction form
    844.25/1,267.54 = 433.67/x
  3. Step 3: Cross multiply
    844.25x = 1,267.54 × 433.67
  4. Step 4: Simplify right side
    844.25x = 549,686.65
  5. Step 5: Solve for x
    x = 549,686.65/844.25
  6. Step 6: Final answer
    x = 651.10

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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.