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Finding the Fourth Proportional to 696.56, 1,048.62 and 626

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Solution

The fourth proportional to 696.56, 1,048.62 and 626 is: 942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.56 : 1,048.62 = 626 : x
  2. Step 2: Convert to fraction form
    696.56/1,048.62 = 626/x
  3. Step 3: Cross multiply
    696.56x = 1,048.62 × 626
  4. Step 4: Simplify right side
    696.56x = 656,436.12
  5. Step 5: Solve for x
    x = 656,436.12/696.56
  6. Step 6: Final answer
    x = 942.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.