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Finding the Fourth Proportional to 557,078.84, 768,771.94 and 327,645.80

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Solution

The fourth proportional to 557,078.84, 768,771.94 and 327,645.80 is: 452,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,078.84 : 768,771.94 = 327,645.80 : x
  2. Step 2: Convert to fraction form
    557,078.84/768,771.94 = 327,645.80/x
  3. Step 3: Cross multiply
    557,078.84x = 768,771.94 × 327,645.80
  4. Step 4: Simplify right side
    557,078.84x = 251,884,894,892.44
  5. Step 5: Solve for x
    x = 251,884,894,892.44/557,078.84
  6. Step 6: Final answer
    x = 452,153.05

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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.