Home / 378,815.82-522,962.38-276,726.66

Finding the Fourth Proportional to 378,815.82, 522,962.38 and 276,726.66

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Solution

The fourth proportional to 378,815.82, 522,962.38 and 276,726.66 is: 382,026.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,815.82 : 522,962.38 = 276,726.66 : x
  2. Step 2: Convert to fraction form
    378,815.82/522,962.38 = 276,726.66/x
  3. Step 3: Cross multiply
    378,815.82x = 522,962.38 × 276,726.66
  4. Step 4: Simplify right side
    378,815.82x = 144,717,632,723.05
  5. Step 5: Solve for x
    x = 144,717,632,723.05/378,815.82
  6. Step 6: Final answer
    x = 382,026.37

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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.