Home / 1,296,205.40-1,944,308.10-1,217,408.60

Finding the Fourth Proportional to 1,296,205.40, 1,944,308.10 and 1,217,408.60

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Solution

The fourth proportional to 1,296,205.40, 1,944,308.10 and 1,217,408.60 is: 1,826,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,205.40 : 1,944,308.10 = 1,217,408.60 : x
  2. Step 2: Convert to fraction form
    1,296,205.40/1,944,308.10 = 1,217,408.60/x
  3. Step 3: Cross multiply
    1,296,205.40x = 1,944,308.10 × 1,217,408.60
  4. Step 4: Simplify right side
    1,296,205.40x = 2,367,017,401,989.66
  5. Step 5: Solve for x
    x = 2,367,017,401,989.66/1,296,205.40
  6. Step 6: Final answer
    x = 1,826,112.90

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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.