Home / 324,619.20-486,928.80-103,003.20

Finding the Fourth Proportional to 324,619.20, 486,928.80 and 103,003.20

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Solution

The fourth proportional to 324,619.20, 486,928.80 and 103,003.20 is: 154,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,619.20 : 486,928.80 = 103,003.20 : x
  2. Step 2: Convert to fraction form
    324,619.20/486,928.80 = 103,003.20/x
  3. Step 3: Cross multiply
    324,619.20x = 486,928.80 × 103,003.20
  4. Step 4: Simplify right side
    324,619.20x = 50,155,224,572.16
  5. Step 5: Solve for x
    x = 50,155,224,572.16/324,619.20
  6. Step 6: Final answer
    x = 154,504.80

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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.