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Finding the Fourth Proportional to 407,123.30, 609,719.58 and 322,611.68

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Solution

The fourth proportional to 407,123.30, 609,719.58 and 322,611.68 is: 483,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,123.30 : 609,719.58 = 322,611.68 : x
  2. Step 2: Convert to fraction form
    407,123.30/609,719.58 = 322,611.68/x
  3. Step 3: Cross multiply
    407,123.30x = 609,719.58 × 322,611.68
  4. Step 4: Simplify right side
    407,123.30x = 196,702,659,556.99
  5. Step 5: Solve for x
    x = 196,702,659,556.99/407,123.30
  6. Step 6: Final answer
    x = 483,152.54

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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.