Home / 324,370.20-486,555.30-305,999.40

Finding the Fourth Proportional to 324,370.20, 486,555.30 and 305,999.40

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Solution

The fourth proportional to 324,370.20, 486,555.30 and 305,999.40 is: 458,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,370.20 : 486,555.30 = 305,999.40 : x
  2. Step 2: Convert to fraction form
    324,370.20/486,555.30 = 305,999.40/x
  3. Step 3: Cross multiply
    324,370.20x = 486,555.30 × 305,999.40
  4. Step 4: Simplify right side
    324,370.20x = 148,885,629,866.82
  5. Step 5: Solve for x
    x = 148,885,629,866.82/324,370.20
  6. Step 6: Final answer
    x = 458,999.10

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1.5x scale

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.