Home / 2,155,778.10-3,233,667.15-639,515.70

Finding the Fourth Proportional to 2,155,778.10, 3,233,667.15 and 639,515.70

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Solution

The fourth proportional to 2,155,778.10, 3,233,667.15 and 639,515.70 is: 959,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,778.10 : 3,233,667.15 = 639,515.70 : x
  2. Step 2: Convert to fraction form
    2,155,778.10/3,233,667.15 = 639,515.70/x
  3. Step 3: Cross multiply
    2,155,778.10x = 3,233,667.15 × 639,515.70
  4. Step 4: Simplify right side
    2,155,778.10x = 2,067,980,910,999.26
  5. Step 5: Solve for x
    x = 2,067,980,910,999.26/2,155,778.10
  6. Step 6: Final answer
    x = 959,273.55

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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.