Home / 1,425,138.30-2,137,734.72-465,596.55

Finding the Fourth Proportional to 1,425,138.30, 2,137,734.72 and 465,596.55

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Solution

The fourth proportional to 1,425,138.30, 2,137,734.72 and 465,596.55 is: 698,403.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,138.30 : 2,137,734.72 = 465,596.55 : x
  2. Step 2: Convert to fraction form
    1,425,138.30/2,137,734.72 = 465,596.55/x
  3. Step 3: Cross multiply
    1,425,138.30x = 2,137,734.72 × 465,596.55
  4. Step 4: Simplify right side
    1,425,138.30x = 995,321,910,447.22
  5. Step 5: Solve for x
    x = 995,321,910,447.22/1,425,138.30
  6. Step 6: Final answer
    x = 698,403.73

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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.