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Finding the Fourth Proportional to 733.98, 1,100.70 and 619.23

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Solution

The fourth proportional to 733.98, 1,100.70 and 619.23 is: 928.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.98 : 1,100.70 = 619.23 : x
  2. Step 2: Convert to fraction form
    733.98/1,100.70 = 619.23/x
  3. Step 3: Cross multiply
    733.98x = 1,100.70 × 619.23
  4. Step 4: Simplify right side
    733.98x = 681,586.46
  5. Step 5: Solve for x
    x = 681,586.46/733.98
  6. Step 6: Final answer
    x = 928.62

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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.