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Finding the Fourth Proportional to 959.03, 1,439.33 and 496.95

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Solution

The fourth proportional to 959.03, 1,439.33 and 496.95 is: 745.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.03 : 1,439.33 = 496.95 : x
  2. Step 2: Convert to fraction form
    959.03/1,439.33 = 496.95/x
  3. Step 3: Cross multiply
    959.03x = 1,439.33 × 496.95
  4. Step 4: Simplify right side
    959.03x = 715,265.36
  5. Step 5: Solve for x
    x = 715,265.36/959.03
  6. Step 6: Final answer
    x = 745.83

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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.