Home / 828,010.20-1,242,015.30-822,761.40

Finding the Fourth Proportional to 828,010.20, 1,242,015.30 and 822,761.40

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Solution

The fourth proportional to 828,010.20, 1,242,015.30 and 822,761.40 is: 1,234,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,010.20 : 1,242,015.30 = 822,761.40 : x
  2. Step 2: Convert to fraction form
    828,010.20/1,242,015.30 = 822,761.40/x
  3. Step 3: Cross multiply
    828,010.20x = 1,242,015.30 × 822,761.40
  4. Step 4: Simplify right side
    828,010.20x = 1,021,882,247,049.42
  5. Step 5: Solve for x
    x = 1,021,882,247,049.42/828,010.20
  6. Step 6: Final answer
    x = 1,234,142.10

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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.