Home / 1,519,376.78-2,278,223.88-621,449.15

Finding the Fourth Proportional to 1,519,376.78, 2,278,223.88 and 621,449.15

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Solution

The fourth proportional to 1,519,376.78, 2,278,223.88 and 621,449.15 is: 931,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519,376.78 : 2,278,223.88 = 621,449.15 : x
  2. Step 2: Convert to fraction form
    1,519,376.78/2,278,223.88 = 621,449.15/x
  3. Step 3: Cross multiply
    1,519,376.78x = 2,278,223.88 × 621,449.15
  4. Step 4: Simplify right side
    1,519,376.78x = 1,415,800,293,735.70
  5. Step 5: Solve for x
    x = 1,415,800,293,735.70/1,519,376.78
  6. Step 6: Final answer
    x = 931,829.62

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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.