Home / 1,209,676.20-1,814,514.30-789,426.60

Finding the Fourth Proportional to 1,209,676.20, 1,814,514.30 and 789,426.60

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Solution

The fourth proportional to 1,209,676.20, 1,814,514.30 and 789,426.60 is: 1,184,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,676.20 : 1,814,514.30 = 789,426.60 : x
  2. Step 2: Convert to fraction form
    1,209,676.20/1,814,514.30 = 789,426.60/x
  3. Step 3: Cross multiply
    1,209,676.20x = 1,814,514.30 × 789,426.60
  4. Step 4: Simplify right side
    1,209,676.20x = 1,432,425,854,500.38
  5. Step 5: Solve for x
    x = 1,432,425,854,500.38/1,209,676.20
  6. Step 6: Final answer
    x = 1,184,139.90

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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.