Home / 1,051,279.80-1,576,919.70-1,040,220.60

Finding the Fourth Proportional to 1,051,279.80, 1,576,919.70 and 1,040,220.60

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Solution

The fourth proportional to 1,051,279.80, 1,576,919.70 and 1,040,220.60 is: 1,560,330.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,279.80 : 1,576,919.70 = 1,040,220.60 : x
  2. Step 2: Convert to fraction form
    1,051,279.80/1,576,919.70 = 1,040,220.60/x
  3. Step 3: Cross multiply
    1,051,279.80x = 1,576,919.70 × 1,040,220.60
  4. Step 4: Simplify right side
    1,051,279.80x = 1,640,344,356,485.82
  5. Step 5: Solve for x
    x = 1,640,344,356,485.82/1,051,279.80
  6. Step 6: Final answer
    x = 1,560,330.90

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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.