Home / 856,481.58-1,284,294.87-280,029.77

Finding the Fourth Proportional to 856,481.58, 1,284,294.87 and 280,029.77

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Solution

The fourth proportional to 856,481.58, 1,284,294.87 and 280,029.77 is: 419,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,481.58 : 1,284,294.87 = 280,029.77 : x
  2. Step 2: Convert to fraction form
    856,481.58/1,284,294.87 = 280,029.77/x
  3. Step 3: Cross multiply
    856,481.58x = 1,284,294.87 × 280,029.77
  4. Step 4: Simplify right side
    856,481.58x = 359,640,791,336.88
  5. Step 5: Solve for x
    x = 359,640,791,336.88/856,481.58
  6. Step 6: Final answer
    x = 419,904.88

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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.