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Finding the Fourth Proportional to 633.51, 880.29 and 626.76

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Solution

The fourth proportional to 633.51, 880.29 and 626.76 is: 870.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.51 : 880.29 = 626.76 : x
  2. Step 2: Convert to fraction form
    633.51/880.29 = 626.76/x
  3. Step 3: Cross multiply
    633.51x = 880.29 × 626.76
  4. Step 4: Simplify right side
    633.51x = 551,730.56
  5. Step 5: Solve for x
    x = 551,730.56/633.51
  6. Step 6: Final answer
    x = 870.91

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.