Home / 1,187,161.56-1,780,908.66-388,505.88

Finding the Fourth Proportional to 1,187,161.56, 1,780,908.66 and 388,505.88

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Solution

The fourth proportional to 1,187,161.56, 1,780,908.66 and 388,505.88 is: 582,813.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,161.56 : 1,780,908.66 = 388,505.88 : x
  2. Step 2: Convert to fraction form
    1,187,161.56/1,780,908.66 = 388,505.88/x
  3. Step 3: Cross multiply
    1,187,161.56x = 1,780,908.66 × 388,505.88
  4. Step 4: Simplify right side
    1,187,161.56x = 691,893,486,152.92
  5. Step 5: Solve for x
    x = 691,893,486,152.92/1,187,161.56
  6. Step 6: Final answer
    x = 582,813.25

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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.