Home / 1,227,971.83-1,838,556.96-627,640.33

Finding the Fourth Proportional to 1,227,971.83, 1,838,556.96 and 627,640.33

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Solution

The fourth proportional to 1,227,971.83, 1,838,556.96 and 627,640.33 is: 939,722.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,971.83 : 1,838,556.96 = 627,640.33 : x
  2. Step 2: Convert to fraction form
    1,227,971.83/1,838,556.96 = 627,640.33/x
  3. Step 3: Cross multiply
    1,227,971.83x = 1,838,556.96 × 627,640.33
  4. Step 4: Simplify right side
    1,227,971.83x = 1,153,952,497,098.20
  5. Step 5: Solve for x
    x = 1,153,952,497,098.20/1,227,971.83
  6. Step 6: Final answer
    x = 939,722.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.