Home / 920,052.54-1,379,642.22-320,940.90

Finding the Fourth Proportional to 920,052.54, 1,379,642.22 and 320,940.90

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Solution

The fourth proportional to 920,052.54, 1,379,642.22 and 320,940.90 is: 481,259.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,052.54 : 1,379,642.22 = 320,940.90 : x
  2. Step 2: Convert to fraction form
    920,052.54/1,379,642.22 = 320,940.90/x
  3. Step 3: Cross multiply
    920,052.54x = 1,379,642.22 × 320,940.90
  4. Step 4: Simplify right side
    920,052.54x = 442,783,615,764.80
  5. Step 5: Solve for x
    x = 442,783,615,764.80/920,052.54
  6. Step 6: Final answer
    x = 481,259.05

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1.5x scale

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.