Home / 850,642.80-1,275,964.20-259,666.80

Finding the Fourth Proportional to 850,642.80, 1,275,964.20 and 259,666.80

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Solution

The fourth proportional to 850,642.80, 1,275,964.20 and 259,666.80 is: 389,500.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,642.80 : 1,275,964.20 = 259,666.80 : x
  2. Step 2: Convert to fraction form
    850,642.80/1,275,964.20 = 259,666.80/x
  3. Step 3: Cross multiply
    850,642.80x = 1,275,964.20 × 259,666.80
  4. Step 4: Simplify right side
    850,642.80x = 331,325,540,728.56
  5. Step 5: Solve for x
    x = 331,325,540,728.56/850,642.80
  6. Step 6: Final answer
    x = 389,500.20

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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.