Home / 1,511,711.40-2,086,119-823,367.64

Finding the Fourth Proportional to 1,511,711.40, 2,086,119 and 823,367.64

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Solution

The fourth proportional to 1,511,711.40, 2,086,119 and 823,367.64 is: 1,136,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,711.40 : 2,086,119 = 823,367.64 : x
  2. Step 2: Convert to fraction form
    1,511,711.40/2,086,119 = 823,367.64/x
  3. Step 3: Cross multiply
    1,511,711.40x = 2,086,119 × 823,367.64
  4. Step 4: Simplify right side
    1,511,711.40x = 1,717,642,877,789.16
  5. Step 5: Solve for x
    x = 1,717,642,877,789.16/1,511,711.40
  6. Step 6: Final answer
    x = 1,136,224.07

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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.