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Finding the Fourth Proportional to 943.13, 1,414.33 and 557.93

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Solution

The fourth proportional to 943.13, 1,414.33 and 557.93 is: 836.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    943.13 : 1,414.33 = 557.93 : x
  2. Step 2: Convert to fraction form
    943.13/1,414.33 = 557.93/x
  3. Step 3: Cross multiply
    943.13x = 1,414.33 × 557.93
  4. Step 4: Simplify right side
    943.13x = 789,097.14
  5. Step 5: Solve for x
    x = 789,097.14/943.13
  6. Step 6: Final answer
    x = 836.68

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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.