Home / 449,120.23-673,680.37-358,739.78

Finding the Fourth Proportional to 449,120.23, 673,680.37 and 358,739.78

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Solution

The fourth proportional to 449,120.23, 673,680.37 and 358,739.78 is: 538,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,120.23 : 673,680.37 = 358,739.78 : x
  2. Step 2: Convert to fraction form
    449,120.23/673,680.37 = 358,739.78/x
  3. Step 3: Cross multiply
    449,120.23x = 673,680.37 × 358,739.78
  4. Step 4: Simplify right side
    449,120.23x = 241,675,947,724.12
  5. Step 5: Solve for x
    x = 241,675,947,724.12/449,120.23
  6. Step 6: Final answer
    x = 538,109.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.