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Finding the Fourth Proportional to 683,644.39, 943,448.28 and 377,740.48

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Solution

The fourth proportional to 683,644.39, 943,448.28 and 377,740.48 is: 521,292.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,644.39 : 943,448.28 = 377,740.48 : x
  2. Step 2: Convert to fraction form
    683,644.39/943,448.28 = 377,740.48/x
  3. Step 3: Cross multiply
    683,644.39x = 943,448.28 × 377,740.48
  4. Step 4: Simplify right side
    683,644.39x = 356,378,606,142.37
  5. Step 5: Solve for x
    x = 356,378,606,142.37/683,644.39
  6. Step 6: Final answer
    x = 521,292.37

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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.