Home / 811,858.73-1,120,383.32-525,876.58

Finding the Fourth Proportional to 811,858.73, 1,120,383.32 and 525,876.58

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Solution

The fourth proportional to 811,858.73, 1,120,383.32 and 525,876.58 is: 725,721.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,858.73 : 1,120,383.32 = 525,876.58 : x
  2. Step 2: Convert to fraction form
    811,858.73/1,120,383.32 = 525,876.58/x
  3. Step 3: Cross multiply
    811,858.73x = 1,120,383.32 × 525,876.58
  4. Step 4: Simplify right side
    811,858.73x = 589,183,343,180.31
  5. Step 5: Solve for x
    x = 589,183,343,180.31/811,858.73
  6. Step 6: Final answer
    x = 725,721.51

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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.