Home / 1,990,918.58-2,984,485.74-1,269,234.90

Finding the Fourth Proportional to 1,990,918.58, 2,984,485.74 and 1,269,234.90

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Solution

The fourth proportional to 1,990,918.58, 2,984,485.74 and 1,269,234.90 is: 1,902,646.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,918.58 : 2,984,485.74 = 1,269,234.90 : x
  2. Step 2: Convert to fraction form
    1,990,918.58/2,984,485.74 = 1,269,234.90/x
  3. Step 3: Cross multiply
    1,990,918.58x = 2,984,485.74 × 1,269,234.90
  4. Step 4: Simplify right side
    1,990,918.58x = 3,788,013,459,760.33
  5. Step 5: Solve for x
    x = 3,788,013,459,760.33/1,990,918.58
  6. Step 6: Final answer
    x = 1,902,646.09

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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.