Home / 1,999,255.80-2,998,008.90-800,779.80

Finding the Fourth Proportional to 1,999,255.80, 2,998,008.90 and 800,779.80

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Solution

The fourth proportional to 1,999,255.80, 2,998,008.90 and 800,779.80 is: 1,200,819.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,255.80 : 2,998,008.90 = 800,779.80 : x
  2. Step 2: Convert to fraction form
    1,999,255.80/2,998,008.90 = 800,779.80/x
  3. Step 3: Cross multiply
    1,999,255.80x = 2,998,008.90 × 800,779.80
  4. Step 4: Simplify right side
    1,999,255.80x = 2,400,744,967,340.22
  5. Step 5: Solve for x
    x = 2,400,744,967,340.22/1,999,255.80
  6. Step 6: Final answer
    x = 1,200,819.31

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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.