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Finding the Fourth Proportional to 696.43, 959.10 and 607.87

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Solution

The fourth proportional to 696.43, 959.10 and 607.87 is: 837.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    696.43 : 959.10 = 607.87 : x
  2. Step 2: Convert to fraction form
    696.43/959.10 = 607.87/x
  3. Step 3: Cross multiply
    696.43x = 959.10 × 607.87
  4. Step 4: Simplify right side
    696.43x = 583,003.32
  5. Step 5: Solve for x
    x = 583,003.32/696.43
  6. Step 6: Final answer
    x = 837.14

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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.