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Finding the Fourth Proportional to 878.65, 1,323.83 and 795.36

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Solution

The fourth proportional to 878.65, 1,323.83 and 795.36 is: 1,198.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    878.65 : 1,323.83 = 795.36 : x
  2. Step 2: Convert to fraction form
    878.65/1,323.83 = 795.36/x
  3. Step 3: Cross multiply
    878.65x = 1,323.83 × 795.36
  4. Step 4: Simplify right side
    878.65x = 1,052,916.79
  5. Step 5: Solve for x
    x = 1,052,916.79/878.65
  6. Step 6: Final answer
    x = 1,198.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.