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Finding the Fourth Proportional to 1,082.67, 1,624.05 and 352.30

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Solution

The fourth proportional to 1,082.67, 1,624.05 and 352.30 is: 528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,082.67 : 1,624.05 = 352.30 : x
  2. Step 2: Convert to fraction form
    1,082.67/1,624.05 = 352.30/x
  3. Step 3: Cross multiply
    1,082.67x = 1,624.05 × 352.30
  4. Step 4: Simplify right side
    1,082.67x = 572,152.82
  5. Step 5: Solve for x
    x = 572,152.82/1,082.67
  6. Step 6: Final answer
    x = 528.46

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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.