Home / 538,369.86-742,944.37-305,795.16

Finding the Fourth Proportional to 538,369.86, 742,944.37 and 305,795.16

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Solution

The fourth proportional to 538,369.86, 742,944.37 and 305,795.16 is: 421,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,369.86 : 742,944.37 = 305,795.16 : x
  2. Step 2: Convert to fraction form
    538,369.86/742,944.37 = 305,795.16/x
  3. Step 3: Cross multiply
    538,369.86x = 742,944.37 × 305,795.16
  4. Step 4: Simplify right side
    538,369.86x = 227,188,794,352.61
  5. Step 5: Solve for x
    x = 227,188,794,352.61/538,369.86
  6. Step 6: Final answer
    x = 421,993.90

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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.