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Finding the Fourth Proportional to 843.98, 1,263.91 and 583.28

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Solution

The fourth proportional to 843.98, 1,263.91 and 583.28 is: 873.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    843.98 : 1,263.91 = 583.28 : x
  2. Step 2: Convert to fraction form
    843.98/1,263.91 = 583.28/x
  3. Step 3: Cross multiply
    843.98x = 1,263.91 × 583.28
  4. Step 4: Simplify right side
    843.98x = 737,210.39
  5. Step 5: Solve for x
    x = 737,210.39/843.98
  6. Step 6: Final answer
    x = 873.50

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Double scale
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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.