Home / 663,124.78-994,881.23-213,836.54

Finding the Fourth Proportional to 663,124.78, 994,881.23 and 213,836.54

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Solution

The fourth proportional to 663,124.78, 994,881.23 and 213,836.54 is: 320,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,124.78 : 994,881.23 = 213,836.54 : x
  2. Step 2: Convert to fraction form
    663,124.78/994,881.23 = 213,836.54/x
  3. Step 3: Cross multiply
    663,124.78x = 994,881.23 × 213,836.54
  4. Step 4: Simplify right side
    663,124.78x = 212,741,958,864.96
  5. Step 5: Solve for x
    x = 212,741,958,864.96/663,124.78
  6. Step 6: Final answer
    x = 320,817.39

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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.