Home / 1,328,273.40-1,992,196.26-381,428.76

Finding the Fourth Proportional to 1,328,273.40, 1,992,196.26 and 381,428.76

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Solution

The fourth proportional to 1,328,273.40, 1,992,196.26 and 381,428.76 is: 572,081.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,273.40 : 1,992,196.26 = 381,428.76 : x
  2. Step 2: Convert to fraction form
    1,328,273.40/1,992,196.26 = 381,428.76/x
  3. Step 3: Cross multiply
    1,328,273.40x = 1,992,196.26 × 381,428.76
  4. Step 4: Simplify right side
    1,328,273.40x = 759,880,949,128.44
  5. Step 5: Solve for x
    x = 759,880,949,128.44/1,328,273.40
  6. Step 6: Final answer
    x = 572,081.73

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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.