Home / 1,186,814.72-1,780,502.13-388,093.16

Finding the Fourth Proportional to 1,186,814.72, 1,780,502.13 and 388,093.16

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Solution

The fourth proportional to 1,186,814.72, 1,780,502.13 and 388,093.16 is: 582,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,814.72 : 1,780,502.13 = 388,093.16 : x
  2. Step 2: Convert to fraction form
    1,186,814.72/1,780,502.13 = 388,093.16/x
  3. Step 3: Cross multiply
    1,186,814.72x = 1,780,502.13 × 388,093.16
  4. Step 4: Simplify right side
    1,186,814.72x = 691,000,689,115.92
  5. Step 5: Solve for x
    x = 691,000,689,115.92/1,186,814.72
  6. Step 6: Final answer
    x = 582,231.31

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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.