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Finding the Fourth Proportional to 944.33, 1,302.68 and 612.93

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Solution

The fourth proportional to 944.33, 1,302.68 and 612.93 is: 845.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.33 : 1,302.68 = 612.93 : x
  2. Step 2: Convert to fraction form
    944.33/1,302.68 = 612.93/x
  3. Step 3: Cross multiply
    944.33x = 1,302.68 × 612.93
  4. Step 4: Simplify right side
    944.33x = 798,458.07
  5. Step 5: Solve for x
    x = 798,458.07/944.33
  6. Step 6: Final answer
    x = 845.53

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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.