Home / 547,749.45-755,819.10-306,001.98

Finding the Fourth Proportional to 547,749.45, 755,819.10 and 306,001.98

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Solution

The fourth proportional to 547,749.45, 755,819.10 and 306,001.98 is: 422,240.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,749.45 : 755,819.10 = 306,001.98 : x
  2. Step 2: Convert to fraction form
    547,749.45/755,819.10 = 306,001.98/x
  3. Step 3: Cross multiply
    547,749.45x = 755,819.10 × 306,001.98
  4. Step 4: Simplify right side
    547,749.45x = 231,282,141,121.82
  5. Step 5: Solve for x
    x = 231,282,141,121.82/547,749.45
  6. Step 6: Final answer
    x = 422,240.75

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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.