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Finding the Fourth Proportional to 570,940.68, 787,982 and 329,175.94

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Solution

The fourth proportional to 570,940.68, 787,982 and 329,175.94 is: 454,311.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,940.68 : 787,982 = 329,175.94 : x
  2. Step 2: Convert to fraction form
    570,940.68/787,982 = 329,175.94/x
  3. Step 3: Cross multiply
    570,940.68x = 787,982 × 329,175.94
  4. Step 4: Simplify right side
    570,940.68x = 259,384,715,553.08
  5. Step 5: Solve for x
    x = 259,384,715,553.08/570,940.68
  6. Step 6: Final answer
    x = 454,311.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.