Home / 379,010.87-522,975.53-217,835.79

Finding the Fourth Proportional to 379,010.87, 522,975.53 and 217,835.79

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Solution

The fourth proportional to 379,010.87, 522,975.53 and 217,835.79 is: 300,579.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,010.87 : 522,975.53 = 217,835.79 : x
  2. Step 2: Convert to fraction form
    379,010.87/522,975.53 = 217,835.79/x
  3. Step 3: Cross multiply
    379,010.87x = 522,975.53 × 217,835.79
  4. Step 4: Simplify right side
    379,010.87x = 113,922,786,639.04
  5. Step 5: Solve for x
    x = 113,922,786,639.04/379,010.87
  6. Step 6: Final answer
    x = 300,579.21

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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.