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Finding the Fourth Proportional to 733.09, 1,011.20 and 511.96

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Solution

The fourth proportional to 733.09, 1,011.20 and 511.96 is: 706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.09 : 1,011.20 = 511.96 : x
  2. Step 2: Convert to fraction form
    733.09/1,011.20 = 511.96/x
  3. Step 3: Cross multiply
    733.09x = 1,011.20 × 511.96
  4. Step 4: Simplify right side
    733.09x = 517,693.95
  5. Step 5: Solve for x
    x = 517,693.95/733.09
  6. Step 6: Final answer
    x = 706.18

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.