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Finding the Fourth Proportional to 1,016.45, 1,524.62 and 626.53

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Solution

The fourth proportional to 1,016.45, 1,524.62 and 626.53 is: 939.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,016.45 : 1,524.62 = 626.53 : x
  2. Step 2: Convert to fraction form
    1,016.45/1,524.62 = 626.53/x
  3. Step 3: Cross multiply
    1,016.45x = 1,524.62 × 626.53
  4. Step 4: Simplify right side
    1,016.45x = 955,209.41
  5. Step 5: Solve for x
    x = 955,209.41/1,016.45
  6. Step 6: Final answer
    x = 939.75

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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.