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Finding the Fourth Proportional to 626,476.67, 864,538.49 and 339,996.95

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Solution

The fourth proportional to 626,476.67, 864,538.49 and 339,996.95 is: 469,196.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,476.67 : 864,538.49 = 339,996.95 : x
  2. Step 2: Convert to fraction form
    626,476.67/864,538.49 = 339,996.95/x
  3. Step 3: Cross multiply
    626,476.67x = 864,538.49 × 339,996.95
  4. Step 4: Simplify right side
    626,476.67x = 293,940,449,757.61
  5. Step 5: Solve for x
    x = 293,940,449,757.61/626,476.67
  6. Step 6: Final answer
    x = 469,196.16

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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.