Home / 985,853.80-1,479,042.69-311,947.08

Finding the Fourth Proportional to 985,853.80, 1,479,042.69 and 311,947.08

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Solution

The fourth proportional to 985,853.80, 1,479,042.69 and 311,947.08 is: 468,003.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,853.80 : 1,479,042.69 = 311,947.08 : x
  2. Step 2: Convert to fraction form
    985,853.80/1,479,042.69 = 311,947.08/x
  3. Step 3: Cross multiply
    985,853.80x = 1,479,042.69 × 311,947.08
  4. Step 4: Simplify right side
    985,853.80x = 461,383,048,340.85
  5. Step 5: Solve for x
    x = 461,383,048,340.85/985,853.80
  6. Step 6: Final answer
    x = 468,003.52

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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.