Home / 547,409.89-821,137.56-187,827.94

Finding the Fourth Proportional to 547,409.89, 821,137.56 and 187,827.94

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Solution

The fourth proportional to 547,409.89, 821,137.56 and 187,827.94 is: 281,749.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,409.89 : 821,137.56 = 187,827.94 : x
  2. Step 2: Convert to fraction form
    547,409.89/821,137.56 = 187,827.94/x
  3. Step 3: Cross multiply
    547,409.89x = 821,137.56 × 187,827.94
  4. Step 4: Simplify right side
    547,409.89x = 154,232,576,351.43
  5. Step 5: Solve for x
    x = 154,232,576,351.43/547,409.89
  6. Step 6: Final answer
    x = 281,749.71

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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.