Home / 1,339,665.92-2,009,517.78-393,056.18

Finding the Fourth Proportional to 1,339,665.92, 2,009,517.78 and 393,056.18

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Solution

The fourth proportional to 1,339,665.92, 2,009,517.78 and 393,056.18 is: 589,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,665.92 : 2,009,517.78 = 393,056.18 : x
  2. Step 2: Convert to fraction form
    1,339,665.92/2,009,517.78 = 393,056.18/x
  3. Step 3: Cross multiply
    1,339,665.92x = 2,009,517.78 × 393,056.18
  4. Step 4: Simplify right side
    1,339,665.92x = 789,853,382,248.88
  5. Step 5: Solve for x
    x = 789,853,382,248.88/1,339,665.92
  6. Step 6: Final answer
    x = 589,589.82

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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.