Home / 1,999,286.07-2,756,145.09-1,425,329.79

Finding the Fourth Proportional to 1,999,286.07, 2,756,145.09 and 1,425,329.79

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Solution

The fourth proportional to 1,999,286.07, 2,756,145.09 and 1,425,329.79 is: 1,964,909.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,286.07 : 2,756,145.09 = 1,425,329.79 : x
  2. Step 2: Convert to fraction form
    1,999,286.07/2,756,145.09 = 1,425,329.79/x
  3. Step 3: Cross multiply
    1,999,286.07x = 2,756,145.09 × 1,425,329.79
  4. Step 4: Simplify right side
    1,999,286.07x = 3,928,415,702,339.23
  5. Step 5: Solve for x
    x = 3,928,415,702,339.23/1,999,286.07
  6. Step 6: Final answer
    x = 1,964,909.26

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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.