Home / 1,311,122.46-1,809,348.50-767,361.76

Finding the Fourth Proportional to 1,311,122.46, 1,809,348.50 and 767,361.76

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Solution

The fourth proportional to 1,311,122.46, 1,809,348.50 and 767,361.76 is: 1,058,958.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,122.46 : 1,809,348.50 = 767,361.76 : x
  2. Step 2: Convert to fraction form
    1,311,122.46/1,809,348.50 = 767,361.76/x
  3. Step 3: Cross multiply
    1,311,122.46x = 1,809,348.50 × 767,361.76
  4. Step 4: Simplify right side
    1,311,122.46x = 1,388,424,849,413.36
  5. Step 5: Solve for x
    x = 1,388,424,849,413.36/1,311,122.46
  6. Step 6: Final answer
    x = 1,058,958.94

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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.