Home / 496,716.45-685,475.87-278,972.24

Finding the Fourth Proportional to 496,716.45, 685,475.87 and 278,972.24

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Solution

The fourth proportional to 496,716.45, 685,475.87 and 278,972.24 is: 384,985.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,716.45 : 685,475.87 = 278,972.24 : x
  2. Step 2: Convert to fraction form
    496,716.45/685,475.87 = 278,972.24/x
  3. Step 3: Cross multiply
    496,716.45x = 685,475.87 × 278,972.24
  4. Step 4: Simplify right side
    496,716.45x = 191,228,734,097.61
  5. Step 5: Solve for x
    x = 191,228,734,097.61/496,716.45
  6. Step 6: Final answer
    x = 384,985.71

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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.