Home / 1,392,886.45-1,922,979.67-1,065,596.43

Finding the Fourth Proportional to 1,392,886.45, 1,922,979.67 and 1,065,596.43

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Solution

The fourth proportional to 1,392,886.45, 1,922,979.67 and 1,065,596.43 is: 1,471,132.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,886.45 : 1,922,979.67 = 1,065,596.43 : x
  2. Step 2: Convert to fraction form
    1,392,886.45/1,922,979.67 = 1,065,596.43/x
  3. Step 3: Cross multiply
    1,392,886.45x = 1,922,979.67 × 1,065,596.43
  4. Step 4: Simplify right side
    1,392,886.45x = 2,049,120,271,314.58
  5. Step 5: Solve for x
    x = 2,049,120,271,314.58/1,392,886.45
  6. Step 6: Final answer
    x = 1,471,132.32

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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.