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Finding the Fourth Proportional to 503.72, 755.26 and 460.74

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Solution

The fourth proportional to 503.72, 755.26 and 460.74 is: 690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.72 : 755.26 = 460.74 : x
  2. Step 2: Convert to fraction form
    503.72/755.26 = 460.74/x
  3. Step 3: Cross multiply
    503.72x = 755.26 × 460.74
  4. Step 4: Simplify right side
    503.72x = 347,981.35
  5. Step 5: Solve for x
    x = 347,981.35/503.72
  6. Step 6: Final answer
    x = 690.83

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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.