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Finding the Fourth Proportional to 557,279.68, 769,168.32 and 366,310.72

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Solution

The fourth proportional to 557,279.68, 769,168.32 and 366,310.72 is: 505,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,279.68 : 769,168.32 = 366,310.72 : x
  2. Step 2: Convert to fraction form
    557,279.68/769,168.32 = 366,310.72/x
  3. Step 3: Cross multiply
    557,279.68x = 769,168.32 × 366,310.72
  4. Step 4: Simplify right side
    557,279.68x = 281,754,601,100.39
  5. Step 5: Solve for x
    x = 281,754,601,100.39/557,279.68
  6. Step 6: Final answer
    x = 505,589.22

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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.