Home / 1,393,297.20-2,089,945.80-447,346.80

Finding the Fourth Proportional to 1,393,297.20, 2,089,945.80 and 447,346.80

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Solution

The fourth proportional to 1,393,297.20, 2,089,945.80 and 447,346.80 is: 671,020.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,297.20 : 2,089,945.80 = 447,346.80 : x
  2. Step 2: Convert to fraction form
    1,393,297.20/2,089,945.80 = 447,346.80/x
  3. Step 3: Cross multiply
    1,393,297.20x = 2,089,945.80 × 447,346.80
  4. Step 4: Simplify right side
    1,393,297.20x = 934,930,565,803.44
  5. Step 5: Solve for x
    x = 934,930,565,803.44/1,393,297.20
  6. Step 6: Final answer
    x = 671,020.20

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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.