Home / 1,999,315.96-2,757,934.38-1,225,321.72

Finding the Fourth Proportional to 1,999,315.96, 2,757,934.38 and 1,225,321.72

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Solution

The fourth proportional to 1,999,315.96, 2,757,934.38 and 1,225,321.72 is: 1,690,256.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,315.96 : 2,757,934.38 = 1,225,321.72 : x
  2. Step 2: Convert to fraction form
    1,999,315.96/2,757,934.38 = 1,225,321.72/x
  3. Step 3: Cross multiply
    1,999,315.96x = 2,757,934.38 × 1,225,321.72
  4. Step 4: Simplify right side
    1,999,315.96x = 3,379,356,898,148.73
  5. Step 5: Solve for x
    x = 3,379,356,898,148.73/1,999,315.96
  6. Step 6: Final answer
    x = 1,690,256.55

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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.