Home / 874,356.53-1,311,567.19-305,626.37

Finding the Fourth Proportional to 874,356.53, 1,311,567.19 and 305,626.37

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Solution

The fourth proportional to 874,356.53, 1,311,567.19 and 305,626.37 is: 458,450.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,356.53 : 1,311,567.19 = 305,626.37 : x
  2. Step 2: Convert to fraction form
    874,356.53/1,311,567.19 = 305,626.37/x
  3. Step 3: Cross multiply
    874,356.53x = 1,311,567.19 × 305,626.37
  4. Step 4: Simplify right side
    874,356.53x = 400,849,511,968.90
  5. Step 5: Solve for x
    x = 400,849,511,968.90/874,356.53
  6. Step 6: Final answer
    x = 458,450.87

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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.