Home / 490,619.48-734,462.40-300,481.16

Finding the Fourth Proportional to 490,619.48, 734,462.40 and 300,481.16

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Solution

The fourth proportional to 490,619.48, 734,462.40 and 300,481.16 is: 449,823.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,619.48 : 734,462.40 = 300,481.16 : x
  2. Step 2: Convert to fraction form
    490,619.48/734,462.40 = 300,481.16/x
  3. Step 3: Cross multiply
    490,619.48x = 734,462.40 × 300,481.16
  4. Step 4: Simplify right side
    490,619.48x = 220,692,113,928.38
  5. Step 5: Solve for x
    x = 220,692,113,928.38/490,619.48
  6. Step 6: Final answer
    x = 449,823.38

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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.