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Finding the Fourth Proportional to 694.51, 957.32 and 554.38

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Solution

The fourth proportional to 694.51, 957.32 and 554.38 is: 764.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.51 : 957.32 = 554.38 : x
  2. Step 2: Convert to fraction form
    694.51/957.32 = 554.38/x
  3. Step 3: Cross multiply
    694.51x = 957.32 × 554.38
  4. Step 4: Simplify right side
    694.51x = 530,715.98
  5. Step 5: Solve for x
    x = 530,715.98/694.51
  6. Step 6: Final answer
    x = 764.16

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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.