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Finding the Fourth Proportional to 969.55, 1,453.86 and 352.83

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Solution

The fourth proportional to 969.55, 1,453.86 and 352.83 is: 529.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    969.55 : 1,453.86 = 352.83 : x
  2. Step 2: Convert to fraction form
    969.55/1,453.86 = 352.83/x
  3. Step 3: Cross multiply
    969.55x = 1,453.86 × 352.83
  4. Step 4: Simplify right side
    969.55x = 512,965.42
  5. Step 5: Solve for x
    x = 512,965.42/969.55
  6. Step 6: Final answer
    x = 529.08

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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.