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Finding the Fourth Proportional to 883.91, 1,220.07 and 604.04

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Solution

The fourth proportional to 883.91, 1,220.07 and 604.04 is: 833.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    883.91 : 1,220.07 = 604.04 : x
  2. Step 2: Convert to fraction form
    883.91/1,220.07 = 604.04/x
  3. Step 3: Cross multiply
    883.91x = 1,220.07 × 604.04
  4. Step 4: Simplify right side
    883.91x = 736,974.13
  5. Step 5: Solve for x
    x = 736,974.13/883.91
  6. Step 6: Final answer
    x = 833.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.