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Finding the Fourth Proportional to 883.99, 1,325.90 and 445.07

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Solution

The fourth proportional to 883.99, 1,325.90 and 445.07 is: 667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.99 : 1,325.90 = 445.07 : x
  2. Step 2: Convert to fraction form
    883.99/1,325.90 = 445.07/x
  3. Step 3: Cross multiply
    883.99x = 1,325.90 × 445.07
  4. Step 4: Simplify right side
    883.99x = 590,111.13
  5. Step 5: Solve for x
    x = 590,111.13/883.99
  6. Step 6: Final answer
    x = 667.56

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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.