Home / 2,082,815.35-2,873,128.49-1,211,551.90

Finding the Fourth Proportional to 2,082,815.35, 2,873,128.49 and 1,211,551.90

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Solution

The fourth proportional to 2,082,815.35, 2,873,128.49 and 1,211,551.90 is: 1,671,268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,082,815.35 : 2,873,128.49 = 1,211,551.90 : x
  2. Step 2: Convert to fraction form
    2,082,815.35/2,873,128.49 = 1,211,551.90/x
  3. Step 3: Cross multiply
    2,082,815.35x = 2,873,128.49 × 1,211,551.90
  4. Step 4: Simplify right side
    2,082,815.35x = 3,480,944,272,306.37
  5. Step 5: Solve for x
    x = 3,480,944,272,306.37/2,082,815.35
  6. Step 6: Final answer
    x = 1,671,268.78

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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.