Home / 1,422,447.35-1,962,958.46-810,636.53

Finding the Fourth Proportional to 1,422,447.35, 1,962,958.46 and 810,636.53

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Solution

The fourth proportional to 1,422,447.35, 1,962,958.46 and 810,636.53 is: 1,118,667.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,447.35 : 1,962,958.46 = 810,636.53 : x
  2. Step 2: Convert to fraction form
    1,422,447.35/1,962,958.46 = 810,636.53/x
  3. Step 3: Cross multiply
    1,422,447.35x = 1,962,958.46 × 810,636.53
  4. Step 4: Simplify right side
    1,422,447.35x = 1,591,245,820,680.57
  5. Step 5: Solve for x
    x = 1,591,245,820,680.57/1,422,447.35
  6. Step 6: Final answer
    x = 1,118,667.64

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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.