Home / 872,507.88-1,308,778.22-273,455.78

Finding the Fourth Proportional to 872,507.88, 1,308,778.22 and 273,455.78

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Solution

The fourth proportional to 872,507.88, 1,308,778.22 and 273,455.78 is: 410,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,507.88 : 1,308,778.22 = 273,455.78 : x
  2. Step 2: Convert to fraction form
    872,507.88/1,308,778.22 = 273,455.78/x
  3. Step 3: Cross multiply
    872,507.88x = 1,308,778.22 × 273,455.78
  4. Step 4: Simplify right side
    872,507.88x = 357,892,963,136.86
  5. Step 5: Solve for x
    x = 357,892,963,136.86/872,507.88
  6. Step 6: Final answer
    x = 410,188.80

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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.