Home / 1,511,763.77-2,086,236.90-823,433.51

Finding the Fourth Proportional to 1,511,763.77, 2,086,236.90 and 823,433.51

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Solution

The fourth proportional to 1,511,763.77, 2,086,236.90 and 823,433.51 is: 1,136,339.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,763.77 : 2,086,236.90 = 823,433.51 : x
  2. Step 2: Convert to fraction form
    1,511,763.77/2,086,236.90 = 823,433.51/x
  3. Step 3: Cross multiply
    1,511,763.77x = 2,086,236.90 × 823,433.51
  4. Step 4: Simplify right side
    1,511,763.77x = 1,717,877,373,258.52
  5. Step 5: Solve for x
    x = 1,717,877,373,258.52/1,511,763.77
  6. Step 6: Final answer
    x = 1,136,339.82

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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.