Home / 939,255.75-1,408,942.25-265,388.81

Finding the Fourth Proportional to 939,255.75, 1,408,942.25 and 265,388.81

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Solution

The fourth proportional to 939,255.75, 1,408,942.25 and 265,388.81 is: 398,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,255.75 : 1,408,942.25 = 265,388.81 : x
  2. Step 2: Convert to fraction form
    939,255.75/1,408,942.25 = 265,388.81/x
  3. Step 3: Cross multiply
    939,255.75x = 1,408,942.25 × 265,388.81
  4. Step 4: Simplify right side
    939,255.75x = 373,917,498,714.57
  5. Step 5: Solve for x
    x = 373,917,498,714.57/939,255.75
  6. Step 6: Final answer
    x = 398,099.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.