Home / 505,882.05-698,108.79-276,434.36

Finding the Fourth Proportional to 505,882.05, 698,108.79 and 276,434.36

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Solution

The fourth proportional to 505,882.05, 698,108.79 and 276,434.36 is: 381,474.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,882.05 : 698,108.79 = 276,434.36 : x
  2. Step 2: Convert to fraction form
    505,882.05/698,108.79 = 276,434.36/x
  3. Step 3: Cross multiply
    505,882.05x = 698,108.79 × 276,434.36
  4. Step 4: Simplify right side
    505,882.05x = 192,981,256,574.02
  5. Step 5: Solve for x
    x = 192,981,256,574.02/505,882.05
  6. Step 6: Final answer
    x = 381,474.81

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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.