Home / 838,630.87-1,256,825.26-305,650.87

Finding the Fourth Proportional to 838,630.87, 1,256,825.26 and 305,650.87

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Solution

The fourth proportional to 838,630.87, 1,256,825.26 and 305,650.87 is: 458,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,630.87 : 1,256,825.26 = 305,650.87 : x
  2. Step 2: Convert to fraction form
    838,630.87/1,256,825.26 = 305,650.87/x
  3. Step 3: Cross multiply
    838,630.87x = 1,256,825.26 × 305,650.87
  4. Step 4: Simplify right side
    838,630.87x = 384,149,731,396.98
  5. Step 5: Solve for x
    x = 384,149,731,396.98/838,630.87
  6. Step 6: Final answer
    x = 458,067.72

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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.