Home / 538,573.86-743,231.97-312,350.58

Finding the Fourth Proportional to 538,573.86, 743,231.97 and 312,350.58

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Solution

The fourth proportional to 538,573.86, 743,231.97 and 312,350.58 is: 431,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,573.86 : 743,231.97 = 312,350.58 : x
  2. Step 2: Convert to fraction form
    538,573.86/743,231.97 = 312,350.58/x
  3. Step 3: Cross multiply
    538,573.86x = 743,231.97 × 312,350.58
  4. Step 4: Simplify right side
    538,573.86x = 232,148,936,904.04
  5. Step 5: Solve for x
    x = 232,148,936,904.04/538,573.86
  6. Step 6: Final answer
    x = 431,043.83

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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.