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Finding the Fourth Proportional to 954.39, 1,316.94 and 534.77

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Solution

The fourth proportional to 954.39, 1,316.94 and 534.77 is: 737.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.39 : 1,316.94 = 534.77 : x
  2. Step 2: Convert to fraction form
    954.39/1,316.94 = 534.77/x
  3. Step 3: Cross multiply
    954.39x = 1,316.94 × 534.77
  4. Step 4: Simplify right side
    954.39x = 704,253.42
  5. Step 5: Solve for x
    x = 704,253.42/954.39
  6. Step 6: Final answer
    x = 737.91

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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.