Home / 1,040,138.60-1,561,374.30-804,525.80

Finding the Fourth Proportional to 1,040,138.60, 1,561,374.30 and 804,525.80

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Solution

The fourth proportional to 1,040,138.60, 1,561,374.30 and 804,525.80 is: 1,207,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,138.60 : 1,561,374.30 = 804,525.80 : x
  2. Step 2: Convert to fraction form
    1,040,138.60/1,561,374.30 = 804,525.80/x
  3. Step 3: Cross multiply
    1,040,138.60x = 1,561,374.30 × 804,525.80
  4. Step 4: Simplify right side
    1,040,138.60x = 1,256,165,907,806.94
  5. Step 5: Solve for x
    x = 1,256,165,907,806.94/1,040,138.60
  6. Step 6: Final answer
    x = 1,207,690.89

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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.