Home / 1,021,990.68-1,532,991.83-263,780.31

Finding the Fourth Proportional to 1,021,990.68, 1,532,991.83 and 263,780.31

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Solution

The fourth proportional to 1,021,990.68, 1,532,991.83 and 263,780.31 is: 395,671.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,990.68 : 1,532,991.83 = 263,780.31 : x
  2. Step 2: Convert to fraction form
    1,021,990.68/1,532,991.83 = 263,780.31/x
  3. Step 3: Cross multiply
    1,021,990.68x = 1,532,991.83 × 263,780.31
  4. Step 4: Simplify right side
    1,021,990.68x = 404,373,058,825.97
  5. Step 5: Solve for x
    x = 404,373,058,825.97/1,021,990.68
  6. Step 6: Final answer
    x = 395,671.96

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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.