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Finding the Fourth Proportional to 633.82, 943.55 and 626.80

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Solution

The fourth proportional to 633.82, 943.55 and 626.80 is: 933.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.82 : 943.55 = 626.80 : x
  2. Step 2: Convert to fraction form
    633.82/943.55 = 626.80/x
  3. Step 3: Cross multiply
    633.82x = 943.55 × 626.80
  4. Step 4: Simplify right side
    633.82x = 591,417.14
  5. Step 5: Solve for x
    x = 591,417.14/633.82
  6. Step 6: Final answer
    x = 933.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.