Home / 303,960.07-455,939.49-285,463.43

Finding the Fourth Proportional to 303,960.07, 455,939.49 and 285,463.43

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Solution

The fourth proportional to 303,960.07, 455,939.49 and 285,463.43 is: 428,194.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,960.07 : 455,939.49 = 285,463.43 : x
  2. Step 2: Convert to fraction form
    303,960.07/455,939.49 = 285,463.43/x
  3. Step 3: Cross multiply
    303,960.07x = 455,939.49 × 285,463.43
  4. Step 4: Simplify right side
    303,960.07x = 130,154,050,687.85
  5. Step 5: Solve for x
    x = 130,154,050,687.85/303,960.07
  6. Step 6: Final answer
    x = 428,194.57

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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.