Home / 3,121,806.30-4,682,709.45-1,625,703.90

Finding the Fourth Proportional to 3,121,806.30, 4,682,709.45 and 1,625,703.90

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Solution

The fourth proportional to 3,121,806.30, 4,682,709.45 and 1,625,703.90 is: 2,438,555.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,121,806.30 : 4,682,709.45 = 1,625,703.90 : x
  2. Step 2: Convert to fraction form
    3,121,806.30/4,682,709.45 = 1,625,703.90/x
  3. Step 3: Cross multiply
    3,121,806.30x = 4,682,709.45 × 1,625,703.90
  4. Step 4: Simplify right side
    3,121,806.30x = 7,612,699,015,431.86
  5. Step 5: Solve for x
    x = 7,612,699,015,431.86/3,121,806.30
  6. Step 6: Final answer
    x = 2,438,555.85

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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.