Home / 1,392,118.60-2,091,288.30-1,339,241.80

Finding the Fourth Proportional to 1,392,118.60, 2,091,288.30 and 1,339,241.80

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Solution

The fourth proportional to 1,392,118.60, 2,091,288.30 and 1,339,241.80 is: 2,011,854.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,118.60 : 2,091,288.30 = 1,339,241.80 : x
  2. Step 2: Convert to fraction form
    1,392,118.60/2,091,288.30 = 1,339,241.80/x
  3. Step 3: Cross multiply
    1,392,118.60x = 2,091,288.30 × 1,339,241.80
  4. Step 4: Simplify right side
    1,392,118.60x = 2,800,740,707,210.94
  5. Step 5: Solve for x
    x = 2,800,740,707,210.94/1,392,118.60
  6. Step 6: Final answer
    x = 2,011,854.96

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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.