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Finding the Fourth Proportional to 328,459.68, 491,729.88 and 296,942.56

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Solution

The fourth proportional to 328,459.68, 491,729.88 and 296,942.56 is: 444,546.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,459.68 : 491,729.88 = 296,942.56 : x
  2. Step 2: Convert to fraction form
    328,459.68/491,729.88 = 296,942.56/x
  3. Step 3: Cross multiply
    328,459.68x = 491,729.88 × 296,942.56
  4. Step 4: Simplify right side
    328,459.68x = 146,015,529,395.69
  5. Step 5: Solve for x
    x = 146,015,529,395.69/328,459.68
  6. Step 6: Final answer
    x = 444,546.28

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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.