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Finding the Fourth Proportional to 424,049.78, 635,919.15 and 124,453.46

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Solution

The fourth proportional to 424,049.78, 635,919.15 and 124,453.46 is: 186,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,049.78 : 635,919.15 = 124,453.46 : x
  2. Step 2: Convert to fraction form
    424,049.78/635,919.15 = 124,453.46/x
  3. Step 3: Cross multiply
    424,049.78x = 635,919.15 × 124,453.46
  4. Step 4: Simplify right side
    424,049.78x = 79,142,338,497.76
  5. Step 5: Solve for x
    x = 79,142,338,497.76/424,049.78
  6. Step 6: Final answer
    x = 186,634.55

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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.