Home / 2,642,858.64-3,647,865.24-1,555,479

Finding the Fourth Proportional to 2,642,858.64, 3,647,865.24 and 1,555,479

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Solution

The fourth proportional to 2,642,858.64, 3,647,865.24 and 1,555,479 is: 2,146,984.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,858.64 : 3,647,865.24 = 1,555,479 : x
  2. Step 2: Convert to fraction form
    2,642,858.64/3,647,865.24 = 1,555,479/x
  3. Step 3: Cross multiply
    2,642,858.64x = 3,647,865.24 × 1,555,479
  4. Step 4: Simplify right side
    2,642,858.64x = 5,674,177,775,649.96
  5. Step 5: Solve for x
    x = 5,674,177,775,649.96/2,642,858.64
  6. Step 6: Final answer
    x = 2,146,984.97

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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.