Home / 1,511,247.20-2,085,517.92-822,908.40

Finding the Fourth Proportional to 1,511,247.20, 2,085,517.92 and 822,908.40

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Solution

The fourth proportional to 1,511,247.20, 2,085,517.92 and 822,908.40 is: 1,135,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,247.20 : 2,085,517.92 = 822,908.40 : x
  2. Step 2: Convert to fraction form
    1,511,247.20/2,085,517.92 = 822,908.40/x
  3. Step 3: Cross multiply
    1,511,247.20x = 2,085,517.92 × 822,908.40
  4. Step 4: Simplify right side
    1,511,247.20x = 1,716,190,214,718.53
  5. Step 5: Solve for x
    x = 1,716,190,214,718.53/1,511,247.20
  6. Step 6: Final answer
    x = 1,135,611.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.