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Finding the Fourth Proportional to 683,729.84, 943,557.15 and 377,813.29

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Solution

The fourth proportional to 683,729.84, 943,557.15 and 377,813.29 is: 521,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,729.84 : 943,557.15 = 377,813.29 : x
  2. Step 2: Convert to fraction form
    683,729.84/943,557.15 = 377,813.29/x
  3. Step 3: Cross multiply
    683,729.84x = 943,557.15 × 377,813.29
  4. Step 4: Simplify right side
    683,729.84x = 356,488,429,255.46
  5. Step 5: Solve for x
    x = 356,488,429,255.46/683,729.84
  6. Step 6: Final answer
    x = 521,387.85

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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.