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Finding the Fourth Proportional to 944.77, 1,418.02 and 482.87

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Solution

The fourth proportional to 944.77, 1,418.02 and 482.87 is: 724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.77 : 1,418.02 = 482.87 : x
  2. Step 2: Convert to fraction form
    944.77/1,418.02 = 482.87/x
  3. Step 3: Cross multiply
    944.77x = 1,418.02 × 482.87
  4. Step 4: Simplify right side
    944.77x = 684,713.68
  5. Step 5: Solve for x
    x = 684,713.68/944.77
  6. Step 6: Final answer
    x = 724.74

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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.