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Finding the Fourth Proportional to 890.11, 1,227.22 and 730.01

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Solution

The fourth proportional to 890.11, 1,227.22 and 730.01 is: 1,006.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    890.11 : 1,227.22 = 730.01 : x
  2. Step 2: Convert to fraction form
    890.11/1,227.22 = 730.01/x
  3. Step 3: Cross multiply
    890.11x = 1,227.22 × 730.01
  4. Step 4: Simplify right side
    890.11x = 895,882.87
  5. Step 5: Solve for x
    x = 895,882.87/890.11
  6. Step 6: Final answer
    x = 1,006.49

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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.