Home / 857,747.20-1,286,620.80-226,724.80

Finding the Fourth Proportional to 857,747.20, 1,286,620.80 and 226,724.80

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Solution

The fourth proportional to 857,747.20, 1,286,620.80 and 226,724.80 is: 340,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,747.20 : 1,286,620.80 = 226,724.80 : x
  2. Step 2: Convert to fraction form
    857,747.20/1,286,620.80 = 226,724.80/x
  3. Step 3: Cross multiply
    857,747.20x = 1,286,620.80 × 226,724.80
  4. Step 4: Simplify right side
    857,747.20x = 291,708,843,555.84
  5. Step 5: Solve for x
    x = 291,708,843,555.84/857,747.20
  6. Step 6: Final answer
    x = 340,087.20

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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.