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Finding the Fourth Proportional to 557,543.80, 769,324.26 and 328,216.60

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Solution

The fourth proportional to 557,543.80, 769,324.26 and 328,216.60 is: 452,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,543.80 : 769,324.26 = 328,216.60 : x
  2. Step 2: Convert to fraction form
    557,543.80/769,324.26 = 328,216.60/x
  3. Step 3: Cross multiply
    557,543.80x = 769,324.26 × 328,216.60
  4. Step 4: Simplify right side
    557,543.80x = 252,504,992,914.72
  5. Step 5: Solve for x
    x = 252,504,992,914.72/557,543.80
  6. Step 6: Final answer
    x = 452,888.17

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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.