Home / 860,865.20-1,291,297.80-261,821.60

Finding the Fourth Proportional to 860,865.20, 1,291,297.80 and 261,821.60

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Solution

The fourth proportional to 860,865.20, 1,291,297.80 and 261,821.60 is: 392,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,865.20 : 1,291,297.80 = 261,821.60 : x
  2. Step 2: Convert to fraction form
    860,865.20/1,291,297.80 = 261,821.60/x
  3. Step 3: Cross multiply
    860,865.20x = 1,291,297.80 × 261,821.60
  4. Step 4: Simplify right side
    860,865.20x = 338,089,656,072.48
  5. Step 5: Solve for x
    x = 338,089,656,072.48/860,865.20
  6. Step 6: Final answer
    x = 392,732.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.