Home / 1,275,198.12-1,759,639.46-723,738.38

Finding the Fourth Proportional to 1,275,198.12, 1,759,639.46 and 723,738.38

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Solution

The fourth proportional to 1,275,198.12, 1,759,639.46 and 723,738.38 is: 998,682.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,198.12 : 1,759,639.46 = 723,738.38 : x
  2. Step 2: Convert to fraction form
    1,275,198.12/1,759,639.46 = 723,738.38/x
  3. Step 3: Cross multiply
    1,275,198.12x = 1,759,639.46 × 723,738.38
  4. Step 4: Simplify right side
    1,275,198.12x = 1,273,518,599,747.59
  5. Step 5: Solve for x
    x = 1,273,518,599,747.59/1,275,198.12
  6. Step 6: Final answer
    x = 998,682.93

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1.5x scale

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.