Home / 1,257,879.20-1,735,901.78-713,964.11

Finding the Fourth Proportional to 1,257,879.20, 1,735,901.78 and 713,964.11

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Solution

The fourth proportional to 1,257,879.20, 1,735,901.78 and 713,964.11 is: 985,286.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,879.20 : 1,735,901.78 = 713,964.11 : x
  2. Step 2: Convert to fraction form
    1,257,879.20/1,735,901.78 = 713,964.11/x
  3. Step 3: Cross multiply
    1,257,879.20x = 1,735,901.78 × 713,964.11
  4. Step 4: Simplify right side
    1,257,879.20x = 1,239,371,557,155.79
  5. Step 5: Solve for x
    x = 1,239,371,557,155.79/1,257,879.20
  6. Step 6: Final answer
    x = 985,286.63

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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.