Home / 1,189,894.28-1,785,550.56-431,794.89

Finding the Fourth Proportional to 1,189,894.28, 1,785,550.56 and 431,794.89

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Solution

The fourth proportional to 1,189,894.28, 1,785,550.56 and 431,794.89 is: 647,949.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,894.28 : 1,785,550.56 = 431,794.89 : x
  2. Step 2: Convert to fraction form
    1,189,894.28/1,785,550.56 = 431,794.89/x
  3. Step 3: Cross multiply
    1,189,894.28x = 1,785,550.56 × 431,794.89
  4. Step 4: Simplify right side
    1,189,894.28x = 770,991,607,644.64
  5. Step 5: Solve for x
    x = 770,991,607,644.64/1,189,894.28
  6. Step 6: Final answer
    x = 647,949.67

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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.