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Finding the Fourth Proportional to 503.83, 754.94 and 422.83

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Solution

The fourth proportional to 503.83, 754.94 and 422.83 is: 633.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.83 : 754.94 = 422.83 : x
  2. Step 2: Convert to fraction form
    503.83/754.94 = 422.83/x
  3. Step 3: Cross multiply
    503.83x = 754.94 × 422.83
  4. Step 4: Simplify right side
    503.83x = 319,210.90
  5. Step 5: Solve for x
    x = 319,210.90/503.83
  6. Step 6: Final answer
    x = 633.57

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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.