Home / 1,311,551.76-1,809,906-738,579.52

Finding the Fourth Proportional to 1,311,551.76, 1,809,906 and 738,579.52

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Solution

The fourth proportional to 1,311,551.76, 1,809,906 and 738,579.52 is: 1,019,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,551.76 : 1,809,906 = 738,579.52 : x
  2. Step 2: Convert to fraction form
    1,311,551.76/1,809,906 = 738,579.52/x
  3. Step 3: Cross multiply
    1,311,551.76x = 1,809,906 × 738,579.52
  4. Step 4: Simplify right side
    1,311,551.76x = 1,336,759,504,725.12
  5. Step 5: Solve for x
    x = 1,336,759,504,725.12/1,311,551.76
  6. Step 6: Final answer
    x = 1,019,219.79

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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.