Home / 1,362,285.72-1,879,857.21-810,972.18

Finding the Fourth Proportional to 1,362,285.72, 1,879,857.21 and 810,972.18

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Solution

The fourth proportional to 1,362,285.72, 1,879,857.21 and 810,972.18 is: 1,119,083.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362,285.72 : 1,879,857.21 = 810,972.18 : x
  2. Step 2: Convert to fraction form
    1,362,285.72/1,879,857.21 = 810,972.18/x
  3. Step 3: Cross multiply
    1,362,285.72x = 1,879,857.21 × 810,972.18
  4. Step 4: Simplify right side
    1,362,285.72x = 1,524,511,899,682.42
  5. Step 5: Solve for x
    x = 1,524,511,899,682.42/1,362,285.72
  6. Step 6: Final answer
    x = 1,119,083.81

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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.