Home / 547,749.95-755,819.79-306,002.48

Finding the Fourth Proportional to 547,749.95, 755,819.79 and 306,002.48

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Solution

The fourth proportional to 547,749.95, 755,819.79 and 306,002.48 is: 422,241.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,749.95 : 755,819.79 = 306,002.48 : x
  2. Step 2: Convert to fraction form
    547,749.95/755,819.79 = 306,002.48/x
  3. Step 3: Cross multiply
    547,749.95x = 755,819.79 × 306,002.48
  4. Step 4: Simplify right side
    547,749.95x = 231,282,730,173.08
  5. Step 5: Solve for x
    x = 231,282,730,173.08/547,749.95
  6. Step 6: Final answer
    x = 422,241.44

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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.