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Finding the Fourth Proportional to 998.05, 1,495.93 and 882.72

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Solution

The fourth proportional to 998.05, 1,495.93 and 882.72 is: 1,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    998.05 : 1,495.93 = 882.72 : x
  2. Step 2: Convert to fraction form
    998.05/1,495.93 = 882.72/x
  3. Step 3: Cross multiply
    998.05x = 1,495.93 × 882.72
  4. Step 4: Simplify right side
    998.05x = 1,320,487.33
  5. Step 5: Solve for x
    x = 1,320,487.33/998.05
  6. Step 6: Final answer
    x = 1,323.07

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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.