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Finding the Fourth Proportional to 954.73, 1,317.42 and 556.27

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Solution

The fourth proportional to 954.73, 1,317.42 and 556.27 is: 767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.73 : 1,317.42 = 556.27 : x
  2. Step 2: Convert to fraction form
    954.73/1,317.42 = 556.27/x
  3. Step 3: Cross multiply
    954.73x = 1,317.42 × 556.27
  4. Step 4: Simplify right side
    954.73x = 732,841.22
  5. Step 5: Solve for x
    x = 732,841.22/954.73
  6. Step 6: Final answer
    x = 767.59

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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.