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Finding the Fourth Proportional to 727,745.76, 1,091,124.48 and 254,172

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Solution

The fourth proportional to 727,745.76, 1,091,124.48 and 254,172 is: 381,085.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,745.76 : 1,091,124.48 = 254,172 : x
  2. Step 2: Convert to fraction form
    727,745.76/1,091,124.48 = 254,172/x
  3. Step 3: Cross multiply
    727,745.76x = 1,091,124.48 × 254,172
  4. Step 4: Simplify right side
    727,745.76x = 277,333,291,330.56
  5. Step 5: Solve for x
    x = 277,333,291,330.56/727,745.76
  6. Step 6: Final answer
    x = 381,085.41

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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.