Home / 421,923.15-582,249.02-228,326.38

Finding the Fourth Proportional to 421,923.15, 582,249.02 and 228,326.38

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Solution

The fourth proportional to 421,923.15, 582,249.02 and 228,326.38 is: 315,087.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,923.15 : 582,249.02 = 228,326.38 : x
  2. Step 2: Convert to fraction form
    421,923.15/582,249.02 = 228,326.38/x
  3. Step 3: Cross multiply
    421,923.15x = 582,249.02 × 228,326.38
  4. Step 4: Simplify right side
    421,923.15x = 132,942,808,397.89
  5. Step 5: Solve for x
    x = 132,942,808,397.89/421,923.15
  6. Step 6: Final answer
    x = 315,087.73

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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.