Home / 1,507,999.78-2,081,053.62-819,673.26

Finding the Fourth Proportional to 1,507,999.78, 2,081,053.62 and 819,673.26

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Solution

The fourth proportional to 1,507,999.78, 2,081,053.62 and 819,673.26 is: 1,131,156.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,507,999.78 : 2,081,053.62 = 819,673.26 : x
  2. Step 2: Convert to fraction form
    1,507,999.78/2,081,053.62 = 819,673.26/x
  3. Step 3: Cross multiply
    1,507,999.78x = 2,081,053.62 × 819,673.26
  4. Step 4: Simplify right side
    1,507,999.78x = 1,705,784,004,940.20
  5. Step 5: Solve for x
    x = 1,705,784,004,940.20/1,507,999.78
  6. Step 6: Final answer
    x = 1,131,156.67

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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.