Home / 1,105,408.40-1,659,862.20-839,469.20

Finding the Fourth Proportional to 1,105,408.40, 1,659,862.20 and 839,469.20

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Solution

The fourth proportional to 1,105,408.40, 1,659,862.20 and 839,469.20 is: 1,260,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,105,408.40 : 1,659,862.20 = 839,469.20 : x
  2. Step 2: Convert to fraction form
    1,105,408.40/1,659,862.20 = 839,469.20/x
  3. Step 3: Cross multiply
    1,105,408.40x = 1,659,862.20 × 839,469.20
  4. Step 4: Simplify right side
    1,105,408.40x = 1,393,403,193,144.24
  5. Step 5: Solve for x
    x = 1,393,403,193,144.24/1,105,408.40
  6. Step 6: Final answer
    x = 1,260,532.48

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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.