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Finding the Fourth Proportional to 603,489.30, 832,820.89 and 331,562.84

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Solution

The fourth proportional to 603,489.30, 832,820.89 and 331,562.84 is: 457,559.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,489.30 : 832,820.89 = 331,562.84 : x
  2. Step 2: Convert to fraction form
    603,489.30/832,820.89 = 331,562.84/x
  3. Step 3: Cross multiply
    603,489.30x = 832,820.89 × 331,562.84
  4. Step 4: Simplify right side
    603,489.30x = 276,132,459,499.73
  5. Step 5: Solve for x
    x = 276,132,459,499.73/603,489.30
  6. Step 6: Final answer
    x = 457,559.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.