Home / 1,998,696.40-2,992,139.70-1,325,537.80

Finding the Fourth Proportional to 1,998,696.40, 2,992,139.70 and 1,325,537.80

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Solution

The fourth proportional to 1,998,696.40, 2,992,139.70 and 1,325,537.80 is: 1,984,390.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998,696.40 : 2,992,139.70 = 1,325,537.80 : x
  2. Step 2: Convert to fraction form
    1,998,696.40/2,992,139.70 = 1,325,537.80/x
  3. Step 3: Cross multiply
    1,998,696.40x = 2,992,139.70 × 1,325,537.80
  4. Step 4: Simplify right side
    1,998,696.40x = 3,966,194,275,230.66
  5. Step 5: Solve for x
    x = 3,966,194,275,230.66/1,998,696.40
  6. Step 6: Final answer
    x = 1,984,390.56

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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.