Home / 888,979.78-1,333,512.42-289,939.78

Finding the Fourth Proportional to 888,979.78, 1,333,512.42 and 289,939.78

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Solution

The fourth proportional to 888,979.78, 1,333,512.42 and 289,939.78 is: 434,923.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,979.78 : 1,333,512.42 = 289,939.78 : x
  2. Step 2: Convert to fraction form
    888,979.78/1,333,512.42 = 289,939.78/x
  3. Step 3: Cross multiply
    888,979.78x = 1,333,512.42 × 289,939.78
  4. Step 4: Simplify right side
    888,979.78x = 386,638,297,682.07
  5. Step 5: Solve for x
    x = 386,638,297,682.07/888,979.78
  6. Step 6: Final answer
    x = 434,923.61

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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.