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Finding the Fourth Proportional to 683,644.78, 943,448.82 and 377,740.88

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Solution

The fourth proportional to 683,644.78, 943,448.82 and 377,740.88 is: 521,292.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,644.78 : 943,448.82 = 377,740.88 : x
  2. Step 2: Convert to fraction form
    683,644.78/943,448.82 = 377,740.88/x
  3. Step 3: Cross multiply
    683,644.78x = 943,448.82 × 377,740.88
  4. Step 4: Simplify right side
    683,644.78x = 356,379,185,439.66
  5. Step 5: Solve for x
    x = 356,379,185,439.66/683,644.78
  6. Step 6: Final answer
    x = 521,292.92

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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.