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Finding the Fourth Proportional to 329,086.39, 493,629.57 and 79,768.39

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Solution

The fourth proportional to 329,086.39, 493,629.57 and 79,768.39 is: 119,652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,086.39 : 493,629.57 = 79,768.39 : x
  2. Step 2: Convert to fraction form
    329,086.39/493,629.57 = 79,768.39/x
  3. Step 3: Cross multiply
    329,086.39x = 493,629.57 × 79,768.39
  4. Step 4: Simplify right side
    329,086.39x = 39,376,036,055.29
  5. Step 5: Solve for x
    x = 39,376,036,055.29/329,086.39
  6. Step 6: Final answer
    x = 119,652.58

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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.