Home / 1,990,836.50-2,986,265.69-494,928.50

Finding the Fourth Proportional to 1,990,836.50, 2,986,265.69 and 494,928.50

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Solution

The fourth proportional to 1,990,836.50, 2,986,265.69 and 494,928.50 is: 742,395.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,836.50 : 2,986,265.69 = 494,928.50 : x
  2. Step 2: Convert to fraction form
    1,990,836.50/2,986,265.69 = 494,928.50/x
  3. Step 3: Cross multiply
    1,990,836.50x = 2,986,265.69 × 494,928.50
  4. Step 4: Simplify right side
    1,990,836.50x = 1,477,987,998,553.17
  5. Step 5: Solve for x
    x = 1,477,987,998,553.17/1,990,836.50
  6. Step 6: Final answer
    x = 742,395.47

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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.