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Finding the Fourth Proportional to 694.68, 960.02 and 570.14

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Solution

The fourth proportional to 694.68, 960.02 and 570.14 is: 787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.68 : 960.02 = 570.14 : x
  2. Step 2: Convert to fraction form
    694.68/960.02 = 570.14/x
  3. Step 3: Cross multiply
    694.68x = 960.02 × 570.14
  4. Step 4: Simplify right side
    694.68x = 547,345.80
  5. Step 5: Solve for x
    x = 547,345.80/694.68
  6. Step 6: Final answer
    x = 787.91

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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.