Home / 1,897,447.80-2,619,257.04-1,286,437.44

Finding the Fourth Proportional to 1,897,447.80, 2,619,257.04 and 1,286,437.44

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Solution

The fourth proportional to 1,897,447.80, 2,619,257.04 and 1,286,437.44 is: 1,775,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,897,447.80 : 2,619,257.04 = 1,286,437.44 : x
  2. Step 2: Convert to fraction form
    1,897,447.80/2,619,257.04 = 1,286,437.44/x
  3. Step 3: Cross multiply
    1,897,447.80x = 2,619,257.04 × 1,286,437.44
  4. Step 4: Simplify right side
    1,897,447.80x = 3,369,510,321,239.58
  5. Step 5: Solve for x
    x = 3,369,510,321,239.58/1,897,447.80
  6. Step 6: Final answer
    x = 1,775,811.87

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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.