Home / 981,152.12-1,471,443.84-381,979.70

Finding the Fourth Proportional to 981,152.12, 1,471,443.84 and 381,979.70

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Solution

The fourth proportional to 981,152.12, 1,471,443.84 and 381,979.70 is: 572,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,152.12 : 1,471,443.84 = 381,979.70 : x
  2. Step 2: Convert to fraction form
    981,152.12/1,471,443.84 = 381,979.70/x
  3. Step 3: Cross multiply
    981,152.12x = 1,471,443.84 × 381,979.70
  4. Step 4: Simplify right side
    981,152.12x = 562,061,676,570.05
  5. Step 5: Solve for x
    x = 562,061,676,570.05/981,152.12
  6. Step 6: Final answer
    x = 572,858.85

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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.