Home / 2,087,739.20-3,131,608.80-1,090,337.60

Finding the Fourth Proportional to 2,087,739.20, 3,131,608.80 and 1,090,337.60

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Solution

The fourth proportional to 2,087,739.20, 3,131,608.80 and 1,090,337.60 is: 1,635,506.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,739.20 : 3,131,608.80 = 1,090,337.60 : x
  2. Step 2: Convert to fraction form
    2,087,739.20/3,131,608.80 = 1,090,337.60/x
  3. Step 3: Cross multiply
    2,087,739.20x = 3,131,608.80 × 1,090,337.60
  4. Step 4: Simplify right side
    2,087,739.20x = 3,414,510,823,130.88
  5. Step 5: Solve for x
    x = 3,414,510,823,130.88/2,087,739.20
  6. Step 6: Final answer
    x = 1,635,506.40

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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.