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Finding the Fourth Proportional to 552,889.82, 763,026.54 and 311,195.54

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Solution

The fourth proportional to 552,889.82, 763,026.54 and 311,195.54 is: 429,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,889.82 : 763,026.54 = 311,195.54 : x
  2. Step 2: Convert to fraction form
    552,889.82/763,026.54 = 311,195.54/x
  3. Step 3: Cross multiply
    552,889.82x = 763,026.54 × 311,195.54
  4. Step 4: Simplify right side
    552,889.82x = 237,450,456,149.63
  5. Step 5: Solve for x
    x = 237,450,456,149.63/552,889.82
  6. Step 6: Final answer
    x = 429,471.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.