Home / 685,614.87-946,014.26-379,676.43

Finding the Fourth Proportional to 685,614.87, 946,014.26 and 379,676.43

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Solution

The fourth proportional to 685,614.87, 946,014.26 and 379,676.43 is: 523,879.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,614.87 : 946,014.26 = 379,676.43 : x
  2. Step 2: Convert to fraction form
    685,614.87/946,014.26 = 379,676.43/x
  3. Step 3: Cross multiply
    685,614.87x = 946,014.26 × 379,676.43
  4. Step 4: Simplify right side
    685,614.87x = 359,179,315,067.51
  5. Step 5: Solve for x
    x = 359,179,315,067.51/685,614.87
  6. Step 6: Final answer
    x = 523,879.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.