Home / 1,328,222.90-1,992,120.49-381,378.26

Finding the Fourth Proportional to 1,328,222.90, 1,992,120.49 and 381,378.26

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Solution

The fourth proportional to 1,328,222.90, 1,992,120.49 and 381,378.26 is: 572,005.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,222.90 : 1,992,120.49 = 381,378.26 : x
  2. Step 2: Convert to fraction form
    1,328,222.90/1,992,120.49 = 381,378.26/x
  3. Step 3: Cross multiply
    1,328,222.90x = 1,992,120.49 × 381,378.26
  4. Step 4: Simplify right side
    1,328,222.90x = 759,751,446,186.55
  5. Step 5: Solve for x
    x = 759,751,446,186.55/1,328,222.90
  6. Step 6: Final answer
    x = 572,005.98

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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.