Home / 487,738.53-673,105.32-272,865.78

Finding the Fourth Proportional to 487,738.53, 673,105.32 and 272,865.78

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Solution

The fourth proportional to 487,738.53, 673,105.32 and 272,865.78 is: 376,569.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,738.53 : 673,105.32 = 272,865.78 : x
  2. Step 2: Convert to fraction form
    487,738.53/673,105.32 = 272,865.78/x
  3. Step 3: Cross multiply
    487,738.53x = 673,105.32 × 272,865.78
  4. Step 4: Simplify right side
    487,738.53x = 183,667,408,163.95
  5. Step 5: Solve for x
    x = 183,667,408,163.95/487,738.53
  6. Step 6: Final answer
    x = 376,569.41

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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.