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Finding the Fourth Proportional to 569,414.88, 785,801.86 and 339,992.21

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Solution

The fourth proportional to 569,414.88, 785,801.86 and 339,992.21 is: 469,194.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,414.88 : 785,801.86 = 339,992.21 : x
  2. Step 2: Convert to fraction form
    569,414.88/785,801.86 = 339,992.21/x
  3. Step 3: Cross multiply
    569,414.88x = 785,801.86 × 339,992.21
  4. Step 4: Simplify right side
    569,414.88x = 267,166,512,118.04
  5. Step 5: Solve for x
    x = 267,166,512,118.04/569,414.88
  6. Step 6: Final answer
    x = 469,194.82

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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.