Home / 1,887,863.70-2,605,238.40-1,028,423.73

Finding the Fourth Proportional to 1,887,863.70, 2,605,238.40 and 1,028,423.73

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Solution

The fourth proportional to 1,887,863.70, 2,605,238.40 and 1,028,423.73 is: 1,419,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887,863.70 : 2,605,238.40 = 1,028,423.73 : x
  2. Step 2: Convert to fraction form
    1,887,863.70/2,605,238.40 = 1,028,423.73/x
  3. Step 3: Cross multiply
    1,887,863.70x = 2,605,238.40 × 1,028,423.73
  4. Step 4: Simplify right side
    1,887,863.70x = 2,679,288,992,867.23
  5. Step 5: Solve for x
    x = 2,679,288,992,867.23/1,887,863.70
  6. Step 6: Final answer
    x = 1,419,217.39

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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.