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Finding the Fourth Proportional to 329,073.19, 493,609.78 and 79,755.19

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Solution

The fourth proportional to 329,073.19, 493,609.78 and 79,755.19 is: 119,632.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,073.19 : 493,609.78 = 79,755.19 : x
  2. Step 2: Convert to fraction form
    329,073.19/493,609.78 = 79,755.19/x
  3. Step 3: Cross multiply
    329,073.19x = 493,609.78 × 79,755.19
  4. Step 4: Simplify right side
    329,073.19x = 39,367,940,655.43
  5. Step 5: Solve for x
    x = 39,367,940,655.43/329,073.19
  6. Step 6: Final answer
    x = 119,632.78

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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.