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Finding the Fourth Proportional to 324,645.12, 487,019.97 and 100,005.48

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Solution

The fourth proportional to 324,645.12, 487,019.97 and 100,005.48 is: 150,024.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,645.12 : 487,019.97 = 100,005.48 : x
  2. Step 2: Convert to fraction form
    324,645.12/487,019.97 = 100,005.48/x
  3. Step 3: Cross multiply
    324,645.12x = 487,019.97 × 100,005.48
  4. Step 4: Simplify right side
    324,645.12x = 48,704,665,869.44
  5. Step 5: Solve for x
    x = 48,704,665,869.44/324,645.12
  6. Step 6: Final answer
    x = 150,024.33

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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.