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Finding the Fourth Proportional to 479,021.80, 718,532.70 and 329,722.60

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Solution

The fourth proportional to 479,021.80, 718,532.70 and 329,722.60 is: 494,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,021.80 : 718,532.70 = 329,722.60 : x
  2. Step 2: Convert to fraction form
    479,021.80/718,532.70 = 329,722.60/x
  3. Step 3: Cross multiply
    479,021.80x = 718,532.70 × 329,722.60
  4. Step 4: Simplify right side
    479,021.80x = 236,916,470,029.02
  5. Step 5: Solve for x
    x = 236,916,470,029.02/479,021.80
  6. Step 6: Final answer
    x = 494,583.90

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Similar ratio
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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.