Home / 1,408,105.36-2,108,132.88-1,318,722.64

Finding the Fourth Proportional to 1,408,105.36, 2,108,132.88 and 1,318,722.64

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Solution

The fourth proportional to 1,408,105.36, 2,108,132.88 and 1,318,722.64 is: 1,974,314.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,105.36 : 2,108,132.88 = 1,318,722.64 : x
  2. Step 2: Convert to fraction form
    1,408,105.36/2,108,132.88 = 1,318,722.64/x
  3. Step 3: Cross multiply
    1,408,105.36x = 2,108,132.88 × 1,318,722.64
  4. Step 4: Simplify right side
    1,408,105.36x = 2,780,042,556,984.40
  5. Step 5: Solve for x
    x = 2,780,042,556,984.40/1,408,105.36
  6. Step 6: Final answer
    x = 1,974,314.31

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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.