Home / 1,328,555.70-1,992,509.55-381,827.70

Finding the Fourth Proportional to 1,328,555.70, 1,992,509.55 and 381,827.70

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Solution

The fourth proportional to 1,328,555.70, 1,992,509.55 and 381,827.70 is: 572,648.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,555.70 : 1,992,509.55 = 381,827.70 : x
  2. Step 2: Convert to fraction form
    1,328,555.70/1,992,509.55 = 381,827.70/x
  3. Step 3: Cross multiply
    1,328,555.70x = 1,992,509.55 × 381,827.70
  4. Step 4: Simplify right side
    1,328,555.70x = 760,795,338,704.54
  5. Step 5: Solve for x
    x = 760,795,338,704.54/1,328,555.70
  6. Step 6: Final answer
    x = 572,648.43

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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.