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Finding the Fourth Proportional to 834.63, 1,151.03 and 535.53

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Solution

The fourth proportional to 834.63, 1,151.03 and 535.53 is: 738.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.63 : 1,151.03 = 535.53 : x
  2. Step 2: Convert to fraction form
    834.63/1,151.03 = 535.53/x
  3. Step 3: Cross multiply
    834.63x = 1,151.03 × 535.53
  4. Step 4: Simplify right side
    834.63x = 616,408.77
  5. Step 5: Solve for x
    x = 616,408.77/834.63
  6. Step 6: Final answer
    x = 738.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.