Home / 919,765.26-1,379,147.58-320,565.60

Finding the Fourth Proportional to 919,765.26, 1,379,147.58 and 320,565.60

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Solution

The fourth proportional to 919,765.26, 1,379,147.58 and 320,565.60 is: 480,674.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,765.26 : 1,379,147.58 = 320,565.60 : x
  2. Step 2: Convert to fraction form
    919,765.26/1,379,147.58 = 320,565.60/x
  3. Step 3: Cross multiply
    919,765.26x = 1,379,147.58 × 320,565.60
  4. Step 4: Simplify right side
    919,765.26x = 442,107,271,471.25
  5. Step 5: Solve for x
    x = 442,107,271,471.25/919,765.26
  6. Step 6: Final answer
    x = 480,674.03

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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.