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Finding the Fourth Proportional to 557,084.48, 768,779.81 and 327,651.44

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Solution

The fourth proportional to 557,084.48, 768,779.81 and 327,651.44 is: 452,160.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,084.48 : 768,779.81 = 327,651.44 : x
  2. Step 2: Convert to fraction form
    557,084.48/768,779.81 = 327,651.44/x
  3. Step 3: Cross multiply
    557,084.48x = 768,779.81 × 327,651.44
  4. Step 4: Simplify right side
    557,084.48x = 251,891,806,307.27
  5. Step 5: Solve for x
    x = 251,891,806,307.27/557,084.48
  6. Step 6: Final answer
    x = 452,160.88

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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.