Home / 839,803.20-1,259,704.80-828,009.60

Finding the Fourth Proportional to 839,803.20, 1,259,704.80 and 828,009.60

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Solution

The fourth proportional to 839,803.20, 1,259,704.80 and 828,009.60 is: 1,242,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,803.20 : 1,259,704.80 = 828,009.60 : x
  2. Step 2: Convert to fraction form
    839,803.20/1,259,704.80 = 828,009.60/x
  3. Step 3: Cross multiply
    839,803.20x = 1,259,704.80 × 828,009.60
  4. Step 4: Simplify right side
    839,803.20x = 1,043,047,667,566.08
  5. Step 5: Solve for x
    x = 1,043,047,667,566.08/839,803.20
  6. Step 6: Final answer
    x = 1,242,014.40

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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.