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Finding the Fourth Proportional to 927.61, 1,279.73 and 534.56

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Solution

The fourth proportional to 927.61, 1,279.73 and 534.56 is: 737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    927.61 : 1,279.73 = 534.56 : x
  2. Step 2: Convert to fraction form
    927.61/1,279.73 = 534.56/x
  3. Step 3: Cross multiply
    927.61x = 1,279.73 × 534.56
  4. Step 4: Simplify right side
    927.61x = 684,087.41
  5. Step 5: Solve for x
    x = 684,087.41/927.61
  6. Step 6: Final answer
    x = 737.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.