Home / 2,080,338.80-3,120,508.20-818,207.60

Finding the Fourth Proportional to 2,080,338.80, 3,120,508.20 and 818,207.60

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Solution

The fourth proportional to 2,080,338.80, 3,120,508.20 and 818,207.60 is: 1,227,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,338.80 : 3,120,508.20 = 818,207.60 : x
  2. Step 2: Convert to fraction form
    2,080,338.80/3,120,508.20 = 818,207.60/x
  3. Step 3: Cross multiply
    2,080,338.80x = 3,120,508.20 × 818,207.60
  4. Step 4: Simplify right side
    2,080,338.80x = 2,553,223,525,102.32
  5. Step 5: Solve for x
    x = 2,553,223,525,102.32/2,080,338.80
  6. Step 6: Final answer
    x = 1,227,311.40

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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.