Home / 876,408.58-1,315,157.19-561,091.78

Finding the Fourth Proportional to 876,408.58, 1,315,157.19 and 561,091.78

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Solution

The fourth proportional to 876,408.58, 1,315,157.19 and 561,091.78 is: 841,986.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,408.58 : 1,315,157.19 = 561,091.78 : x
  2. Step 2: Convert to fraction form
    876,408.58/1,315,157.19 = 561,091.78/x
  3. Step 3: Cross multiply
    876,408.58x = 1,315,157.19 × 561,091.78
  4. Step 4: Simplify right side
    876,408.58x = 737,923,888,716.90
  5. Step 5: Solve for x
    x = 737,923,888,716.90/876,408.58
  6. Step 6: Final answer
    x = 841,986.15

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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.