Home / 678,418.14-1,017,648.81-341,274.54

Finding the Fourth Proportional to 678,418.14, 1,017,648.81 and 341,274.54

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Solution

The fourth proportional to 678,418.14, 1,017,648.81 and 341,274.54 is: 511,922.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,418.14 : 1,017,648.81 = 341,274.54 : x
  2. Step 2: Convert to fraction form
    678,418.14/1,017,648.81 = 341,274.54/x
  3. Step 3: Cross multiply
    678,418.14x = 1,017,648.81 × 341,274.54
  4. Step 4: Simplify right side
    678,418.14x = 347,297,629,514.30
  5. Step 5: Solve for x
    x = 347,297,629,514.30/678,418.14
  6. Step 6: Final answer
    x = 511,922.68

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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.