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Finding the Fourth Proportional to 675.13, 1,011.26 and 626.17

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Solution

The fourth proportional to 675.13, 1,011.26 and 626.17 is: 937.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    675.13 : 1,011.26 = 626.17 : x
  2. Step 2: Convert to fraction form
    675.13/1,011.26 = 626.17/x
  3. Step 3: Cross multiply
    675.13x = 1,011.26 × 626.17
  4. Step 4: Simplify right side
    675.13x = 633,217.54
  5. Step 5: Solve for x
    x = 633,217.54/675.13
  6. Step 6: Final answer
    x = 937.92

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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.