Home / 1,999,212.80-2,998,974.72-579,289.28

Finding the Fourth Proportional to 1,999,212.80, 2,998,974.72 and 579,289.28

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Solution

The fourth proportional to 1,999,212.80, 2,998,974.72 and 579,289.28 is: 868,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,212.80 : 2,998,974.72 = 579,289.28 : x
  2. Step 2: Convert to fraction form
    1,999,212.80/2,998,974.72 = 579,289.28/x
  3. Step 3: Cross multiply
    1,999,212.80x = 2,998,974.72 × 579,289.28
  4. Step 4: Simplify right side
    1,999,212.80x = 1,737,273,906,287.00
  5. Step 5: Solve for x
    x = 1,737,273,906,287.00/1,999,212.80
  6. Step 6: Final answer
    x = 868,978.98

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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.