Home / 3,145,820.79-4,339,866.69-1,999,286.04

Finding the Fourth Proportional to 3,145,820.79, 4,339,866.69 and 1,999,286.04

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Solution

The fourth proportional to 3,145,820.79, 4,339,866.69 and 1,999,286.04 is: 2,758,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,820.79 : 4,339,866.69 = 1,999,286.04 : x
  2. Step 2: Convert to fraction form
    3,145,820.79/4,339,866.69 = 1,999,286.04/x
  3. Step 3: Cross multiply
    3,145,820.79x = 4,339,866.69 × 1,999,286.04
  4. Step 4: Simplify right side
    3,145,820.79x = 8,676,634,888,778.01
  5. Step 5: Solve for x
    x = 8,676,634,888,778.01/3,145,820.79
  6. Step 6: Final answer
    x = 2,758,146.59

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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.