Home / 828,964.80-1,243,447.20-267,999.30

Finding the Fourth Proportional to 828,964.80, 1,243,447.20 and 267,999.30

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Solution

The fourth proportional to 828,964.80, 1,243,447.20 and 267,999.30 is: 401,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,964.80 : 1,243,447.20 = 267,999.30 : x
  2. Step 2: Convert to fraction form
    828,964.80/1,243,447.20 = 267,999.30/x
  3. Step 3: Cross multiply
    828,964.80x = 1,243,447.20 × 267,999.30
  4. Step 4: Simplify right side
    828,964.80x = 333,242,979,186.96
  5. Step 5: Solve for x
    x = 333,242,979,186.96/828,964.80
  6. Step 6: Final answer
    x = 401,998.95

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Double scale
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Similar ratio
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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.