Home / 855,860.85-1,283,790.06-256,821.03

Finding the Fourth Proportional to 855,860.85, 1,283,790.06 and 256,821.03

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Solution

The fourth proportional to 855,860.85, 1,283,790.06 and 256,821.03 is: 385,231.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,860.85 : 1,283,790.06 = 256,821.03 : x
  2. Step 2: Convert to fraction form
    855,860.85/1,283,790.06 = 256,821.03/x
  3. Step 3: Cross multiply
    855,860.85x = 1,283,790.06 × 256,821.03
  4. Step 4: Simplify right side
    855,860.85x = 329,704,285,512.96
  5. Step 5: Solve for x
    x = 329,704,285,512.96/855,860.85
  6. Step 6: Final answer
    x = 385,231.18

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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.