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Finding the Fourth Proportional to 944.22, 1,417.39 and 554.68

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Solution

The fourth proportional to 944.22, 1,417.39 and 554.68 is: 832.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.22 : 1,417.39 = 554.68 : x
  2. Step 2: Convert to fraction form
    944.22/1,417.39 = 554.68/x
  3. Step 3: Cross multiply
    944.22x = 1,417.39 × 554.68
  4. Step 4: Simplify right side
    944.22x = 786,197.89
  5. Step 5: Solve for x
    x = 786,197.89/944.22
  6. Step 6: Final answer
    x = 832.64

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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.