Home / 1,219,768.45-1,829,742.55-321,203.96

Finding the Fourth Proportional to 1,219,768.45, 1,829,742.55 and 321,203.96

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Solution

The fourth proportional to 1,219,768.45, 1,829,742.55 and 321,203.96 is: 481,829.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,768.45 : 1,829,742.55 = 321,203.96 : x
  2. Step 2: Convert to fraction form
    1,219,768.45/1,829,742.55 = 321,203.96/x
  3. Step 3: Cross multiply
    1,219,768.45x = 1,829,742.55 × 321,203.96
  4. Step 4: Simplify right side
    1,219,768.45x = 587,720,549,750.31
  5. Step 5: Solve for x
    x = 587,720,549,750.31/1,219,768.45
  6. Step 6: Final answer
    x = 481,829.61

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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.