Home / 1,999,371.60-2,999,494.80-800,992.80

Finding the Fourth Proportional to 1,999,371.60, 2,999,494.80 and 800,992.80

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Solution

The fourth proportional to 1,999,371.60, 2,999,494.80 and 800,992.80 is: 1,201,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999,371.60 : 2,999,494.80 = 800,992.80 : x
  2. Step 2: Convert to fraction form
    1,999,371.60/2,999,494.80 = 800,992.80/x
  3. Step 3: Cross multiply
    1,999,371.60x = 2,999,494.80 × 800,992.80
  4. Step 4: Simplify right side
    1,999,371.60x = 2,402,573,738,437.44
  5. Step 5: Solve for x
    x = 2,402,573,738,437.44/1,999,371.60
  6. Step 6: Final answer
    x = 1,201,664.43

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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.