Home / 1,243,984.09-1,716,039.61-856,126.15

Finding the Fourth Proportional to 1,243,984.09, 1,716,039.61 and 856,126.15

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Solution

The fourth proportional to 1,243,984.09, 1,716,039.61 and 856,126.15 is: 1,181,000.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,984.09 : 1,716,039.61 = 856,126.15 : x
  2. Step 2: Convert to fraction form
    1,243,984.09/1,716,039.61 = 856,126.15/x
  3. Step 3: Cross multiply
    1,243,984.09x = 1,716,039.61 × 856,126.15
  4. Step 4: Simplify right side
    1,243,984.09x = 1,469,146,379,324.95
  5. Step 5: Solve for x
    x = 1,469,146,379,324.95/1,243,984.09
  6. Step 6: Final answer
    x = 1,181,000.94

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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.