Home / 1,379,911.36-2,067,570.48-480,857.56

Finding the Fourth Proportional to 1,379,911.36, 2,067,570.48 and 480,857.56

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Solution

The fourth proportional to 1,379,911.36, 2,067,570.48 and 480,857.56 is: 720,486.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,911.36 : 2,067,570.48 = 480,857.56 : x
  2. Step 2: Convert to fraction form
    1,379,911.36/2,067,570.48 = 480,857.56/x
  3. Step 3: Cross multiply
    1,379,911.36x = 2,067,570.48 × 480,857.56
  4. Step 4: Simplify right side
    1,379,911.36x = 994,206,896,140.83
  5. Step 5: Solve for x
    x = 994,206,896,140.83/1,379,911.36
  6. Step 6: Final answer
    x = 720,486.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.