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Finding the Fourth Proportional to 733.14, 1,011.15 and 622.98

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Solution

The fourth proportional to 733.14, 1,011.15 and 622.98 is: 859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.14 : 1,011.15 = 622.98 : x
  2. Step 2: Convert to fraction form
    733.14/1,011.15 = 622.98/x
  3. Step 3: Cross multiply
    733.14x = 1,011.15 × 622.98
  4. Step 4: Simplify right side
    733.14x = 629,926.23
  5. Step 5: Solve for x
    x = 629,926.23/733.14
  6. Step 6: Final answer
    x = 859.22

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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.