Home / 1,151,989.56-1,589,783.76-628,728.75

Finding the Fourth Proportional to 1,151,989.56, 1,589,783.76 and 628,728.75

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Solution

The fourth proportional to 1,151,989.56, 1,589,783.76 and 628,728.75 is: 867,666.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,989.56 : 1,589,783.76 = 628,728.75 : x
  2. Step 2: Convert to fraction form
    1,151,989.56/1,589,783.76 = 628,728.75/x
  3. Step 3: Cross multiply
    1,151,989.56x = 1,589,783.76 × 628,728.75
  4. Step 4: Simplify right side
    1,151,989.56x = 999,542,756,195.10
  5. Step 5: Solve for x
    x = 999,542,756,195.10/1,151,989.56
  6. Step 6: Final answer
    x = 867,666.51

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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.