Home / 1,261,919.85-1,741,440.40-688,960.03

Finding the Fourth Proportional to 1,261,919.85, 1,741,440.40 and 688,960.03

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Solution

The fourth proportional to 1,261,919.85, 1,741,440.40 and 688,960.03 is: 950,759.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,919.85 : 1,741,440.40 = 688,960.03 : x
  2. Step 2: Convert to fraction form
    1,261,919.85/1,741,440.40 = 688,960.03/x
  3. Step 3: Cross multiply
    1,261,919.85x = 1,741,440.40 × 688,960.03
  4. Step 4: Simplify right side
    1,261,919.85x = 1,199,782,830,227.21
  5. Step 5: Solve for x
    x = 1,199,782,830,227.21/1,261,919.85
  6. Step 6: Final answer
    x = 950,759.93

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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.