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Finding the Fourth Proportional to 936.23, 1,406.02 and 888.39

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Solution

The fourth proportional to 936.23, 1,406.02 and 888.39 is: 1,334.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    936.23 : 1,406.02 = 888.39 : x
  2. Step 2: Convert to fraction form
    936.23/1,406.02 = 888.39/x
  3. Step 3: Cross multiply
    936.23x = 1,406.02 × 888.39
  4. Step 4: Simplify right side
    936.23x = 1,249,091.89
  5. Step 5: Solve for x
    x = 1,249,091.89/936.23
  6. Step 6: Final answer
    x = 1,334.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.