Home / 499,738.86-689,645.07-273,379.50

Finding the Fourth Proportional to 499,738.86, 689,645.07 and 273,379.50

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Solution

The fourth proportional to 499,738.86, 689,645.07 and 273,379.50 is: 377,266.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,738.86 : 689,645.07 = 273,379.50 : x
  2. Step 2: Convert to fraction form
    499,738.86/689,645.07 = 273,379.50/x
  3. Step 3: Cross multiply
    499,738.86x = 689,645.07 × 273,379.50
  4. Step 4: Simplify right side
    499,738.86x = 188,534,824,414.07
  5. Step 5: Solve for x
    x = 188,534,824,414.07/499,738.86
  6. Step 6: Final answer
    x = 377,266.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.