Home / 391,579.07-587,081.33-125,186.27

Finding the Fourth Proportional to 391,579.07, 587,081.33 and 125,186.27

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Solution

The fourth proportional to 391,579.07, 587,081.33 and 125,186.27 is: 187,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,579.07 : 587,081.33 = 125,186.27 : x
  2. Step 2: Convert to fraction form
    391,579.07/587,081.33 = 125,186.27/x
  3. Step 3: Cross multiply
    391,579.07x = 587,081.33 × 125,186.27
  4. Step 4: Simplify right side
    391,579.07x = 73,494,521,263.41
  5. Step 5: Solve for x
    x = 73,494,521,263.41/391,579.07
  6. Step 6: Final answer
    x = 187,687.56

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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.