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Finding the Fourth Proportional to 1,017.63, 1,524.83 and 531.63

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Solution

The fourth proportional to 1,017.63, 1,524.83 and 531.63 is: 796.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,017.63 : 1,524.83 = 531.63 : x
  2. Step 2: Convert to fraction form
    1,017.63/1,524.83 = 531.63/x
  3. Step 3: Cross multiply
    1,017.63x = 1,524.83 × 531.63
  4. Step 4: Simplify right side
    1,017.63x = 810,642.71
  5. Step 5: Solve for x
    x = 810,642.71/1,017.63
  6. Step 6: Final answer
    x = 796.60

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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.