Home / 547,091.57-755,112.34-320,809.97

Finding the Fourth Proportional to 547,091.57, 755,112.34 and 320,809.97

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Solution

The fourth proportional to 547,091.57, 755,112.34 and 320,809.97 is: 442,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,091.57 : 755,112.34 = 320,809.97 : x
  2. Step 2: Convert to fraction form
    547,091.57/755,112.34 = 320,809.97/x
  3. Step 3: Cross multiply
    547,091.57x = 755,112.34 × 320,809.97
  4. Step 4: Simplify right side
    547,091.57x = 242,247,569,430.82
  5. Step 5: Solve for x
    x = 242,247,569,430.82/547,091.57
  6. Step 6: Final answer
    x = 442,791.63

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1.5x scale

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.