Home / 319,627.70-479,442.46-82,972.42

Finding the Fourth Proportional to 319,627.70, 479,442.46 and 82,972.42

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Solution

The fourth proportional to 319,627.70, 479,442.46 and 82,972.42 is: 124,458.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,627.70 : 479,442.46 = 82,972.42 : x
  2. Step 2: Convert to fraction form
    319,627.70/479,442.46 = 82,972.42/x
  3. Step 3: Cross multiply
    319,627.70x = 479,442.46 × 82,972.42
  4. Step 4: Simplify right side
    319,627.70x = 39,780,501,156.95
  5. Step 5: Solve for x
    x = 39,780,501,156.95/319,627.70
  6. Step 6: Final answer
    x = 124,458.87

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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.