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Finding the Fourth Proportional to 489,761.34, 734,868 and 223,603.44

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Solution

The fourth proportional to 489,761.34, 734,868 and 223,603.44 is: 335,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,761.34 : 734,868 = 223,603.44 : x
  2. Step 2: Convert to fraction form
    489,761.34/734,868 = 223,603.44/x
  3. Step 3: Cross multiply
    489,761.34x = 734,868 × 223,603.44
  4. Step 4: Simplify right side
    489,761.34x = 164,319,012,745.92
  5. Step 5: Solve for x
    x = 164,319,012,745.92/489,761.34
  6. Step 6: Final answer
    x = 335,508.34

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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.