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Finding the Fourth Proportional to 490,096.60, 735,582.30 and 423,611.80

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Solution

The fourth proportional to 490,096.60, 735,582.30 and 423,611.80 is: 635,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,096.60 : 735,582.30 = 423,611.80 : x
  2. Step 2: Convert to fraction form
    490,096.60/735,582.30 = 423,611.80/x
  3. Step 3: Cross multiply
    490,096.60x = 735,582.30 × 423,611.80
  4. Step 4: Simplify right side
    490,096.60x = 311,601,342,151.14
  5. Step 5: Solve for x
    x = 311,601,342,151.14/490,096.60
  6. Step 6: Final answer
    x = 635,795.76

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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.