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Finding the Fourth Proportional to 959.50, 1,435.11 and 568.57

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Solution

The fourth proportional to 959.50, 1,435.11 and 568.57 is: 850.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.50 : 1,435.11 = 568.57 : x
  2. Step 2: Convert to fraction form
    959.50/1,435.11 = 568.57/x
  3. Step 3: Cross multiply
    959.50x = 1,435.11 × 568.57
  4. Step 4: Simplify right side
    959.50x = 815,960.49
  5. Step 5: Solve for x
    x = 815,960.49/959.50
  6. Step 6: Final answer
    x = 850.40

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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.