Home / 1,243,984.30-1,716,039.91-856,126.36

Finding the Fourth Proportional to 1,243,984.30, 1,716,039.91 and 856,126.36

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Solution

The fourth proportional to 1,243,984.30, 1,716,039.91 and 856,126.36 is: 1,181,001.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,984.30 : 1,716,039.91 = 856,126.36 : x
  2. Step 2: Convert to fraction form
    1,243,984.30/1,716,039.91 = 856,126.36/x
  3. Step 3: Cross multiply
    1,243,984.30x = 1,716,039.91 × 856,126.36
  4. Step 4: Simplify right side
    1,243,984.30x = 1,469,147,004,978.24
  5. Step 5: Solve for x
    x = 1,469,147,004,978.24/1,243,984.30
  6. Step 6: Final answer
    x = 1,181,001.25

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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.