Home / 681,930.70-1,023,515.70-345,205.60

Finding the Fourth Proportional to 681,930.70, 1,023,515.70 and 345,205.60

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Solution

The fourth proportional to 681,930.70, 1,023,515.70 and 345,205.60 is: 518,122.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,930.70 : 1,023,515.70 = 345,205.60 : x
  2. Step 2: Convert to fraction form
    681,930.70/1,023,515.70 = 345,205.60/x
  3. Step 3: Cross multiply
    681,930.70x = 1,023,515.70 × 345,205.60
  4. Step 4: Simplify right side
    681,930.70x = 353,323,351,327.92
  5. Step 5: Solve for x
    x = 353,323,351,327.92/681,930.70
  6. Step 6: Final answer
    x = 518,122.08

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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.