Home / 419,736.80-579,219.90-228,746.06

Finding the Fourth Proportional to 419,736.80, 579,219.90 and 228,746.06

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Solution

The fourth proportional to 419,736.80, 579,219.90 and 228,746.06 is: 315,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,736.80 : 579,219.90 = 228,746.06 : x
  2. Step 2: Convert to fraction form
    419,736.80/579,219.90 = 228,746.06/x
  3. Step 3: Cross multiply
    419,736.80x = 579,219.90 × 228,746.06
  4. Step 4: Simplify right side
    419,736.80x = 132,494,269,998.59
  5. Step 5: Solve for x
    x = 132,494,269,998.59/419,736.80
  6. Step 6: Final answer
    x = 315,660.36

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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.