Home / 1,298,382.87-1,791,758.59-717,645.54

Finding the Fourth Proportional to 1,298,382.87, 1,791,758.59 and 717,645.54

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Solution

The fourth proportional to 1,298,382.87, 1,791,758.59 and 717,645.54 is: 990,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,382.87 : 1,791,758.59 = 717,645.54 : x
  2. Step 2: Convert to fraction form
    1,298,382.87/1,791,758.59 = 717,645.54/x
  3. Step 3: Cross multiply
    1,298,382.87x = 1,791,758.59 × 717,645.54
  4. Step 4: Simplify right side
    1,298,382.87x = 1,285,847,560,870.19
  5. Step 5: Solve for x
    x = 1,285,847,560,870.19/1,298,382.87
  6. Step 6: Final answer
    x = 990,345.44

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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.