Home / 1,325,453.13-1,991,172.59-786,063.21

Finding the Fourth Proportional to 1,325,453.13, 1,991,172.59 and 786,063.21

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Solution

The fourth proportional to 1,325,453.13, 1,991,172.59 and 786,063.21 is: 1,180,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,453.13 : 1,991,172.59 = 786,063.21 : x
  2. Step 2: Convert to fraction form
    1,325,453.13/1,991,172.59 = 786,063.21/x
  3. Step 3: Cross multiply
    1,325,453.13x = 1,991,172.59 × 786,063.21
  4. Step 4: Simplify right side
    1,325,453.13x = 1,565,187,517,759.41
  5. Step 5: Solve for x
    x = 1,565,187,517,759.41/1,325,453.13
  6. Step 6: Final answer
    x = 1,180,869.76

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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.