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Finding the Fourth Proportional to 913.92, 1,260.85 and 599.09

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Solution

The fourth proportional to 913.92, 1,260.85 and 599.09 is: 826.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    913.92 : 1,260.85 = 599.09 : x
  2. Step 2: Convert to fraction form
    913.92/1,260.85 = 599.09/x
  3. Step 3: Cross multiply
    913.92x = 1,260.85 × 599.09
  4. Step 4: Simplify right side
    913.92x = 755,362.63
  5. Step 5: Solve for x
    x = 755,362.63/913.92
  6. Step 6: Final answer
    x = 826.51

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Why These Related Problems?

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