Home / 1,511,783.47-2,086,273.55-823,458.03

Finding the Fourth Proportional to 1,511,783.47, 2,086,273.55 and 823,458.03

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Solution

The fourth proportional to 1,511,783.47, 2,086,273.55 and 823,458.03 is: 1,136,378.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,783.47 : 2,086,273.55 = 823,458.03 : x
  2. Step 2: Convert to fraction form
    1,511,783.47/2,086,273.55 = 823,458.03/x
  3. Step 3: Cross multiply
    1,511,783.47x = 2,086,273.55 × 823,458.03
  4. Step 4: Simplify right side
    1,511,783.47x = 1,717,958,701,759.23
  5. Step 5: Solve for x
    x = 1,717,958,701,759.23/1,511,783.47
  6. Step 6: Final answer
    x = 1,136,378.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.