Home / 603,149.39-831,642.96-449,921.57

Finding the Fourth Proportional to 603,149.39, 831,642.96 and 449,921.57

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Solution

The fourth proportional to 603,149.39, 831,642.96 and 449,921.57 is: 620,367.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,149.39 : 831,642.96 = 449,921.57 : x
  2. Step 2: Convert to fraction form
    603,149.39/831,642.96 = 449,921.57/x
  3. Step 3: Cross multiply
    603,149.39x = 831,642.96 × 449,921.57
  4. Step 4: Simplify right side
    603,149.39x = 374,174,102,084.43
  5. Step 5: Solve for x
    x = 374,174,102,084.43/603,149.39
  6. Step 6: Final answer
    x = 620,367.21

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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.