Home / 2,021,391-2,789,202.47-1,161,790.65

Finding the Fourth Proportional to 2,021,391, 2,789,202.47 and 1,161,790.65

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Solution

The fourth proportional to 2,021,391, 2,789,202.47 and 1,161,790.65 is: 1,603,088.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021,391 : 2,789,202.47 = 1,161,790.65 : x
  2. Step 2: Convert to fraction form
    2,021,391/2,789,202.47 = 1,161,790.65/x
  3. Step 3: Cross multiply
    2,021,391x = 2,789,202.47 × 1,161,790.65
  4. Step 4: Simplify right side
    2,021,391x = 3,240,469,344,793.95
  5. Step 5: Solve for x
    x = 3,240,469,344,793.95/2,021,391
  6. Step 6: Final answer
    x = 1,603,088.84

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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.