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Finding the Fourth Proportional to 558,392.86, 770,578.68 and 303,745.06

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Solution

The fourth proportional to 558,392.86, 770,578.68 and 303,745.06 is: 419,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,392.86 : 770,578.68 = 303,745.06 : x
  2. Step 2: Convert to fraction form
    558,392.86/770,578.68 = 303,745.06/x
  3. Step 3: Cross multiply
    558,392.86x = 770,578.68 × 303,745.06
  4. Step 4: Simplify right side
    558,392.86x = 234,059,467,391.32
  5. Step 5: Solve for x
    x = 234,059,467,391.32/558,392.86
  6. Step 6: Final answer
    x = 419,166.30

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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.