Home / 781,571.21-1,171,744.39-308,610.59

Finding the Fourth Proportional to 781,571.21, 1,171,744.39 and 308,610.59

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Solution

The fourth proportional to 781,571.21, 1,171,744.39 and 308,610.59 is: 462,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,571.21 : 1,171,744.39 = 308,610.59 : x
  2. Step 2: Convert to fraction form
    781,571.21/1,171,744.39 = 308,610.59/x
  3. Step 3: Cross multiply
    781,571.21x = 1,171,744.39 × 308,610.59
  4. Step 4: Simplify right side
    781,571.21x = 361,612,725,984.04
  5. Step 5: Solve for x
    x = 361,612,725,984.04/781,571.21
  6. Step 6: Final answer
    x = 462,674.06

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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.