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Finding the Fourth Proportional to 415,371.43, 624,357.71 and 274,124.39

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Solution

The fourth proportional to 415,371.43, 624,357.71 and 274,124.39 is: 412,044.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,371.43 : 624,357.71 = 274,124.39 : x
  2. Step 2: Convert to fraction form
    415,371.43/624,357.71 = 274,124.39/x
  3. Step 3: Cross multiply
    415,371.43x = 624,357.71 × 274,124.39
  4. Step 4: Simplify right side
    415,371.43x = 171,151,676,395.55
  5. Step 5: Solve for x
    x = 171,151,676,395.55/415,371.43
  6. Step 6: Final answer
    x = 412,044.89

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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.