Home / 1,512,164.78-2,086,781.12-823,834.51

Finding the Fourth Proportional to 1,512,164.78, 2,086,781.12 and 823,834.51

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Solution

The fourth proportional to 1,512,164.78, 2,086,781.12 and 823,834.51 is: 1,136,888.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,164.78 : 2,086,781.12 = 823,834.51 : x
  2. Step 2: Convert to fraction form
    1,512,164.78/2,086,781.12 = 823,834.51/x
  3. Step 3: Cross multiply
    1,512,164.78x = 2,086,781.12 × 823,834.51
  4. Step 4: Simplify right side
    1,512,164.78x = 1,719,162,302,214.99
  5. Step 5: Solve for x
    x = 1,719,162,302,214.99/1,512,164.78
  6. Step 6: Final answer
    x = 1,136,888.21

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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.