Home / 2,661,260.67-3,991,890.57-639,504.59

Finding the Fourth Proportional to 2,661,260.67, 3,991,890.57 and 639,504.59

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Solution

The fourth proportional to 2,661,260.67, 3,991,890.57 and 639,504.59 is: 959,256.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,260.67 : 3,991,890.57 = 639,504.59 : x
  2. Step 2: Convert to fraction form
    2,661,260.67/3,991,890.57 = 639,504.59/x
  3. Step 3: Cross multiply
    2,661,260.67x = 3,991,890.57 × 639,504.59
  4. Step 4: Simplify right side
    2,661,260.67x = 2,552,832,319,935.12
  5. Step 5: Solve for x
    x = 2,552,832,319,935.12/2,661,260.67
  6. Step 6: Final answer
    x = 959,256.77

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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.