Home / 1,399,654.36-1,930,857.78-826,310.44

Finding the Fourth Proportional to 1,399,654.36, 1,930,857.78 and 826,310.44

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Solution

The fourth proportional to 1,399,654.36, 1,930,857.78 and 826,310.44 is: 1,139,915.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,654.36 : 1,930,857.78 = 826,310.44 : x
  2. Step 2: Convert to fraction form
    1,399,654.36/1,930,857.78 = 826,310.44/x
  3. Step 3: Cross multiply
    1,399,654.36x = 1,930,857.78 × 826,310.44
  4. Step 4: Simplify right side
    1,399,654.36x = 1,595,487,941,769.22
  5. Step 5: Solve for x
    x = 1,595,487,941,769.22/1,399,654.36
  6. Step 6: Final answer
    x = 1,139,915.67

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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.