Home / 654,956.41-982,378.35-398,722.48

Finding the Fourth Proportional to 654,956.41, 982,378.35 and 398,722.48

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Solution

The fourth proportional to 654,956.41, 982,378.35 and 398,722.48 is: 598,049.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,956.41 : 982,378.35 = 398,722.48 : x
  2. Step 2: Convert to fraction form
    654,956.41/982,378.35 = 398,722.48/x
  3. Step 3: Cross multiply
    654,956.41x = 982,378.35 × 398,722.48
  4. Step 4: Simplify right side
    654,956.41x = 391,696,325,104.80
  5. Step 5: Solve for x
    x = 391,696,325,104.80/654,956.41
  6. Step 6: Final answer
    x = 598,049.46

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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.