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Finding the Fourth Proportional to 733.83, 1,100.22 and 619.01

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Solution

The fourth proportional to 733.83, 1,100.22 and 619.01 is: 928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.83 : 1,100.22 = 619.01 : x
  2. Step 2: Convert to fraction form
    733.83/1,100.22 = 619.01/x
  3. Step 3: Cross multiply
    733.83x = 1,100.22 × 619.01
  4. Step 4: Simplify right side
    733.83x = 681,043.49
  5. Step 5: Solve for x
    x = 681,043.49/733.83
  6. Step 6: Final answer
    x = 928.07

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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.