Home / 828,235.38-1,242,380.88-229,146.42

Finding the Fourth Proportional to 828,235.38, 1,242,380.88 and 229,146.42

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Solution

The fourth proportional to 828,235.38, 1,242,380.88 and 229,146.42 is: 343,727.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,235.38 : 1,242,380.88 = 229,146.42 : x
  2. Step 2: Convert to fraction form
    828,235.38/1,242,380.88 = 229,146.42/x
  3. Step 3: Cross multiply
    828,235.38x = 1,242,380.88 × 229,146.42
  4. Step 4: Simplify right side
    828,235.38x = 284,687,130,928.45
  5. Step 5: Solve for x
    x = 284,687,130,928.45/828,235.38
  6. Step 6: Final answer
    x = 343,727.32

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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.