Home / 681,915.70-1,023,493.20-345,190.60

Finding the Fourth Proportional to 681,915.70, 1,023,493.20 and 345,190.60

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Solution

The fourth proportional to 681,915.70, 1,023,493.20 and 345,190.60 is: 518,099.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,915.70 : 1,023,493.20 = 345,190.60 : x
  2. Step 2: Convert to fraction form
    681,915.70/1,023,493.20 = 345,190.60/x
  3. Step 3: Cross multiply
    681,915.70x = 1,023,493.20 × 345,190.60
  4. Step 4: Simplify right side
    681,915.70x = 353,300,231,803.92
  5. Step 5: Solve for x
    x = 353,300,231,803.92/681,915.70
  6. Step 6: Final answer
    x = 518,099.57

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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.