Home / 419,740.12-579,224.46-228,749.38

Finding the Fourth Proportional to 419,740.12, 579,224.46 and 228,749.38

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Solution

The fourth proportional to 419,740.12, 579,224.46 and 228,749.38 is: 315,664.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,740.12 : 579,224.46 = 228,749.38 : x
  2. Step 2: Convert to fraction form
    419,740.12/579,224.46 = 228,749.38/x
  3. Step 3: Cross multiply
    419,740.12x = 579,224.46 × 228,749.38
  4. Step 4: Simplify right side
    419,740.12x = 132,497,236,105.84
  5. Step 5: Solve for x
    x = 132,497,236,105.84/419,740.12
  6. Step 6: Final answer
    x = 315,664.93

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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.