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Finding the Fourth Proportional to 833.79, 1,251.14 and 626.94

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Solution

The fourth proportional to 833.79, 1,251.14 and 626.94 is: 940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    833.79 : 1,251.14 = 626.94 : x
  2. Step 2: Convert to fraction form
    833.79/1,251.14 = 626.94/x
  3. Step 3: Cross multiply
    833.79x = 1,251.14 × 626.94
  4. Step 4: Simplify right side
    833.79x = 784,389.71
  5. Step 5: Solve for x
    x = 784,389.71/833.79
  6. Step 6: Final answer
    x = 940.75

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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.