Home / 511,739.20-766,629.60-275,003.20

Finding the Fourth Proportional to 511,739.20, 766,629.60 and 275,003.20

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Solution

The fourth proportional to 511,739.20, 766,629.60 and 275,003.20 is: 411,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,739.20 : 766,629.60 = 275,003.20 : x
  2. Step 2: Convert to fraction form
    511,739.20/766,629.60 = 275,003.20/x
  3. Step 3: Cross multiply
    511,739.20x = 766,629.60 × 275,003.20
  4. Step 4: Simplify right side
    511,739.20x = 210,825,593,214.72
  5. Step 5: Solve for x
    x = 210,825,593,214.72/511,739.20
  6. Step 6: Final answer
    x = 411,978.59

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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.