Home / 979,847.30-1,469,198.88-380,107.64

Finding the Fourth Proportional to 979,847.30, 1,469,198.88 and 380,107.64

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Solution

The fourth proportional to 979,847.30, 1,469,198.88 and 380,107.64 is: 569,939.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,847.30 : 1,469,198.88 = 380,107.64 : x
  2. Step 2: Convert to fraction form
    979,847.30/1,469,198.88 = 380,107.64/x
  3. Step 3: Cross multiply
    979,847.30x = 1,469,198.88 × 380,107.64
  4. Step 4: Simplify right side
    979,847.30x = 558,453,711,621.45
  5. Step 5: Solve for x
    x = 558,453,711,621.45/979,847.30
  6. Step 6: Final answer
    x = 569,939.53

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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.