Home / 658,131.52-987,072.39-320,832.94

Finding the Fourth Proportional to 658,131.52, 987,072.39 and 320,832.94

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Solution

The fourth proportional to 658,131.52, 987,072.39 and 320,832.94 is: 481,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,131.52 : 987,072.39 = 320,832.94 : x
  2. Step 2: Convert to fraction form
    658,131.52/987,072.39 = 320,832.94/x
  3. Step 3: Cross multiply
    658,131.52x = 987,072.39 × 320,832.94
  4. Step 4: Simplify right side
    658,131.52x = 316,685,336,876.53
  5. Step 5: Solve for x
    x = 316,685,336,876.53/658,131.52
  6. Step 6: Final answer
    x = 481,188.53

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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.