Home / 1,393,198.59-1,920,834.21-902,300.79

Finding the Fourth Proportional to 1,393,198.59, 1,920,834.21 and 902,300.79

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Solution

The fourth proportional to 1,393,198.59, 1,920,834.21 and 902,300.79 is: 1,244,022.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,198.59 : 1,920,834.21 = 902,300.79 : x
  2. Step 2: Convert to fraction form
    1,393,198.59/1,920,834.21 = 902,300.79/x
  3. Step 3: Cross multiply
    1,393,198.59x = 1,920,834.21 × 902,300.79
  4. Step 4: Simplify right side
    1,393,198.59x = 1,733,170,225,142.03
  5. Step 5: Solve for x
    x = 1,733,170,225,142.03/1,393,198.59
  6. Step 6: Final answer
    x = 1,244,022.38

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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.