Home / 1,380,296.70-2,065,779.45-1,212,335.10

Finding the Fourth Proportional to 1,380,296.70, 2,065,779.45 and 1,212,335.10

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Solution

The fourth proportional to 1,380,296.70, 2,065,779.45 and 1,212,335.10 is: 1,814,404.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,296.70 : 2,065,779.45 = 1,212,335.10 : x
  2. Step 2: Convert to fraction form
    1,380,296.70/2,065,779.45 = 1,212,335.10/x
  3. Step 3: Cross multiply
    1,380,296.70x = 2,065,779.45 × 1,212,335.10
  4. Step 4: Simplify right side
    1,380,296.70x = 2,504,416,936,093.70
  5. Step 5: Solve for x
    x = 2,504,416,936,093.70/1,380,296.70
  6. Step 6: Final answer
    x = 1,814,404.78

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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.