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Finding the Fourth Proportional to 733.03, 1,011.49 and 418.26

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Solution

The fourth proportional to 733.03, 1,011.49 and 418.26 is: 577.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.03 : 1,011.49 = 418.26 : x
  2. Step 2: Convert to fraction form
    733.03/1,011.49 = 418.26/x
  3. Step 3: Cross multiply
    733.03x = 1,011.49 × 418.26
  4. Step 4: Simplify right side
    733.03x = 423,063.72
  5. Step 5: Solve for x
    x = 423,063.72/733.03
  6. Step 6: Final answer
    x = 577.15

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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.