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Finding the Fourth Proportional to 694.95, 953.62 and 632.28

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Solution

The fourth proportional to 694.95, 953.62 and 632.28 is: 867.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    694.95 : 953.62 = 632.28 : x
  2. Step 2: Convert to fraction form
    694.95/953.62 = 632.28/x
  3. Step 3: Cross multiply
    694.95x = 953.62 × 632.28
  4. Step 4: Simplify right side
    694.95x = 602,956.85
  5. Step 5: Solve for x
    x = 602,956.85/694.95
  6. Step 6: Final answer
    x = 867.63

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.