Home / 2,188,619.68-3,020,307.60-1,283,216.80

Finding the Fourth Proportional to 2,188,619.68, 3,020,307.60 and 1,283,216.80

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Solution

The fourth proportional to 2,188,619.68, 3,020,307.60 and 1,283,216.80 is: 1,770,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188,619.68 : 3,020,307.60 = 1,283,216.80 : x
  2. Step 2: Convert to fraction form
    2,188,619.68/3,020,307.60 = 1,283,216.80/x
  3. Step 3: Cross multiply
    2,188,619.68x = 3,020,307.60 × 1,283,216.80
  4. Step 4: Simplify right side
    2,188,619.68x = 3,875,709,453,487.68
  5. Step 5: Solve for x
    x = 3,875,709,453,487.68/2,188,619.68
  6. Step 6: Final answer
    x = 1,770,846.48

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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.