Home / 789,326.10-1,183,439.97-339,912.18

Finding the Fourth Proportional to 789,326.10, 1,183,439.97 and 339,912.18

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Solution

The fourth proportional to 789,326.10, 1,183,439.97 and 339,912.18 is: 509,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,326.10 : 1,183,439.97 = 339,912.18 : x
  2. Step 2: Convert to fraction form
    789,326.10/1,183,439.97 = 339,912.18/x
  3. Step 3: Cross multiply
    789,326.10x = 1,183,439.97 × 339,912.18
  4. Step 4: Simplify right side
    789,326.10x = 402,265,660,101.84
  5. Step 5: Solve for x
    x = 402,265,660,101.84/789,326.10
  6. Step 6: Final answer
    x = 509,631.77

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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.