Home / 1,608,611.40-2,412,917.10-811,449.90

Finding the Fourth Proportional to 1,608,611.40, 2,412,917.10 and 811,449.90

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Solution

The fourth proportional to 1,608,611.40, 2,412,917.10 and 811,449.90 is: 1,217,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608,611.40 : 2,412,917.10 = 811,449.90 : x
  2. Step 2: Convert to fraction form
    1,608,611.40/2,412,917.10 = 811,449.90/x
  3. Step 3: Cross multiply
    1,608,611.40x = 2,412,917.10 × 811,449.90
  4. Step 4: Simplify right side
    1,608,611.40x = 1,957,961,339,503.29
  5. Step 5: Solve for x
    x = 1,957,961,339,503.29/1,608,611.40
  6. Step 6: Final answer
    x = 1,217,174.85

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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.