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Finding the Fourth Proportional to 510,040.96, 764,361.60 and 322,717.12

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Solution

The fourth proportional to 510,040.96, 764,361.60 and 322,717.12 is: 483,632.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,040.96 : 764,361.60 = 322,717.12 : x
  2. Step 2: Convert to fraction form
    510,040.96/764,361.60 = 322,717.12/x
  3. Step 3: Cross multiply
    510,040.96x = 764,361.60 × 322,717.12
  4. Step 4: Simplify right side
    510,040.96x = 246,672,574,190.59
  5. Step 5: Solve for x
    x = 246,672,574,190.59/510,040.96
  6. Step 6: Final answer
    x = 483,632.87

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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.