Home / 1,040,128.35-1,561,358.93-804,515.55

Finding the Fourth Proportional to 1,040,128.35, 1,561,358.93 and 804,515.55

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Solution

The fourth proportional to 1,040,128.35, 1,561,358.93 and 804,515.55 is: 1,207,675.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,128.35 : 1,561,358.93 = 804,515.55 : x
  2. Step 2: Convert to fraction form
    1,040,128.35/1,561,358.93 = 804,515.55/x
  3. Step 3: Cross multiply
    1,040,128.35x = 1,561,358.93 × 804,515.55
  4. Step 4: Simplify right side
    1,040,128.35x = 1,256,137,538,316.36
  5. Step 5: Solve for x
    x = 1,256,137,538,316.36/1,040,128.35
  6. Step 6: Final answer
    x = 1,207,675.51

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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.