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Finding the Fourth Proportional to 967.05, 1,450.62 and 317.79

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Solution

The fourth proportional to 967.05, 1,450.62 and 317.79 is: 476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    967.05 : 1,450.62 = 317.79 : x
  2. Step 2: Convert to fraction form
    967.05/1,450.62 = 317.79/x
  3. Step 3: Cross multiply
    967.05x = 1,450.62 × 317.79
  4. Step 4: Simplify right side
    967.05x = 460,992.53
  5. Step 5: Solve for x
    x = 460,992.53/967.05
  6. Step 6: Final answer
    x = 476.70

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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.