Home / 855,240-1,282,859.97-393,571.36

Finding the Fourth Proportional to 855,240, 1,282,859.97 and 393,571.36

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Solution

The fourth proportional to 855,240, 1,282,859.97 and 393,571.36 is: 590,357.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,240 : 1,282,859.97 = 393,571.36 : x
  2. Step 2: Convert to fraction form
    855,240/1,282,859.97 = 393,571.36/x
  3. Step 3: Cross multiply
    855,240x = 1,282,859.97 × 393,571.36
  4. Step 4: Simplify right side
    855,240x = 504,896,943,082.46
  5. Step 5: Solve for x
    x = 504,896,943,082.46/855,240
  6. Step 6: Final answer
    x = 590,357.03

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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.