Home / 1,214,515.11-1,819,778.67-415,360.65

Finding the Fourth Proportional to 1,214,515.11, 1,819,778.67 and 415,360.65

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Solution

The fourth proportional to 1,214,515.11, 1,819,778.67 and 415,360.65 is: 622,359.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,515.11 : 1,819,778.67 = 415,360.65 : x
  2. Step 2: Convert to fraction form
    1,214,515.11/1,819,778.67 = 415,360.65/x
  3. Step 3: Cross multiply
    1,214,515.11x = 1,819,778.67 × 415,360.65
  4. Step 4: Simplify right side
    1,214,515.11x = 755,864,451,227.34
  5. Step 5: Solve for x
    x = 755,864,451,227.34/1,214,515.11
  6. Step 6: Final answer
    x = 622,359.03

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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.