Home / 2,255,653.80-3,112,514.31-1,288,846.68

Finding the Fourth Proportional to 2,255,653.80, 3,112,514.31 and 1,288,846.68

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Solution

The fourth proportional to 2,255,653.80, 3,112,514.31 and 1,288,846.68 is: 1,778,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,255,653.80 : 3,112,514.31 = 1,288,846.68 : x
  2. Step 2: Convert to fraction form
    2,255,653.80/3,112,514.31 = 1,288,846.68/x
  3. Step 3: Cross multiply
    2,255,653.80x = 3,112,514.31 × 1,288,846.68
  4. Step 4: Simplify right side
    2,255,653.80x = 4,011,553,734,895.99
  5. Step 5: Solve for x
    x = 4,011,553,734,895.99/2,255,653.80
  6. Step 6: Final answer
    x = 1,778,443.90

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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.