Home / 759,884.22-1,140,273.90-280,449.54

Finding the Fourth Proportional to 759,884.22, 1,140,273.90 and 280,449.54

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Solution

The fourth proportional to 759,884.22, 1,140,273.90 and 280,449.54 is: 420,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,884.22 : 1,140,273.90 = 280,449.54 : x
  2. Step 2: Convert to fraction form
    759,884.22/1,140,273.90 = 280,449.54/x
  3. Step 3: Cross multiply
    759,884.22x = 1,140,273.90 × 280,449.54
  4. Step 4: Simplify right side
    759,884.22x = 319,789,290,729.01
  5. Step 5: Solve for x
    x = 319,789,290,729.01/759,884.22
  6. Step 6: Final answer
    x = 420,839.49

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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.