Home / 386,971.56-533,067.42-329,425.36

Finding the Fourth Proportional to 386,971.56, 533,067.42 and 329,425.36

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Solution

The fourth proportional to 386,971.56, 533,067.42 and 329,425.36 is: 453,795.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,971.56 : 533,067.42 = 329,425.36 : x
  2. Step 2: Convert to fraction form
    386,971.56/533,067.42 = 329,425.36/x
  3. Step 3: Cross multiply
    386,971.56x = 533,067.42 × 329,425.36
  4. Step 4: Simplify right side
    386,971.56x = 175,605,926,737.77
  5. Step 5: Solve for x
    x = 175,605,926,737.77/386,971.56
  6. Step 6: Final answer
    x = 453,795.43

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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.