Home / 1,899,338.43-2,621,474.64-1,287,687.86

Finding the Fourth Proportional to 1,899,338.43, 2,621,474.64 and 1,287,687.86

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Solution

The fourth proportional to 1,899,338.43, 2,621,474.64 and 1,287,687.86 is: 1,777,272.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899,338.43 : 2,621,474.64 = 1,287,687.86 : x
  2. Step 2: Convert to fraction form
    1,899,338.43/2,621,474.64 = 1,287,687.86/x
  3. Step 3: Cross multiply
    1,899,338.43x = 2,621,474.64 × 1,287,687.86
  4. Step 4: Simplify right side
    1,899,338.43x = 3,375,641,056,118.50
  5. Step 5: Solve for x
    x = 3,375,641,056,118.50/1,899,338.43
  6. Step 6: Final answer
    x = 1,777,272.02

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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.