Home / 324,540.20-486,579.90-124,783.40

Finding the Fourth Proportional to 324,540.20, 486,579.90 and 124,783.40

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Solution

The fourth proportional to 324,540.20, 486,579.90 and 124,783.40 is: 187,086.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,540.20 : 486,579.90 = 124,783.40 : x
  2. Step 2: Convert to fraction form
    324,540.20/486,579.90 = 124,783.40/x
  3. Step 3: Cross multiply
    324,540.20x = 486,579.90 × 124,783.40
  4. Step 4: Simplify right side
    324,540.20x = 60,717,094,293.66
  5. Step 5: Solve for x
    x = 60,717,094,293.66/324,540.20
  6. Step 6: Final answer
    x = 187,086.51

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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.