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Finding the Fourth Proportional to 924.94, 1,389.57 and 799.66

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Solution

The fourth proportional to 924.94, 1,389.57 and 799.66 is: 1,201.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    924.94 : 1,389.57 = 799.66 : x
  2. Step 2: Convert to fraction form
    924.94/1,389.57 = 799.66/x
  3. Step 3: Cross multiply
    924.94x = 1,389.57 × 799.66
  4. Step 4: Simplify right side
    924.94x = 1,111,183.55
  5. Step 5: Solve for x
    x = 1,111,183.55/924.94
  6. Step 6: Final answer
    x = 1,201.36

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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.