Home / 1,214,512.86-1,819,775.30-415,358.40

Finding the Fourth Proportional to 1,214,512.86, 1,819,775.30 and 415,358.40

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Solution

The fourth proportional to 1,214,512.86, 1,819,775.30 and 415,358.40 is: 622,355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,512.86 : 1,819,775.30 = 415,358.40 : x
  2. Step 2: Convert to fraction form
    1,214,512.86/1,819,775.30 = 415,358.40/x
  3. Step 3: Cross multiply
    1,214,512.86x = 1,819,775.30 × 415,358.40
  4. Step 4: Simplify right side
    1,214,512.86x = 755,858,954,890.73
  5. Step 5: Solve for x
    x = 755,858,954,890.73/1,214,512.86
  6. Step 6: Final answer
    x = 622,355.66

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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.