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Finding the Fourth Proportional to 547,751.95, 755,822.55 and 306,004.48

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Solution

The fourth proportional to 547,751.95, 755,822.55 and 306,004.48 is: 422,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,751.95 : 755,822.55 = 306,004.48 : x
  2. Step 2: Convert to fraction form
    547,751.95/755,822.55 = 306,004.48/x
  3. Step 3: Cross multiply
    547,751.95x = 755,822.55 × 306,004.48
  4. Step 4: Simplify right side
    547,751.95x = 231,285,086,385.02
  5. Step 5: Solve for x
    x = 231,285,086,385.02/547,751.95
  6. Step 6: Final answer
    x = 422,244.20

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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.