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Finding the Fourth Proportional to 676,764, 933,934.32 and 404,843.36

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Solution

The fourth proportional to 676,764, 933,934.32 and 404,843.36 is: 558,683.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,764 : 933,934.32 = 404,843.36 : x
  2. Step 2: Convert to fraction form
    676,764/933,934.32 = 404,843.36/x
  3. Step 3: Cross multiply
    676,764x = 933,934.32 × 404,843.36
  4. Step 4: Simplify right side
    676,764x = 378,097,103,458.44
  5. Step 5: Solve for x
    x = 378,097,103,458.44/676,764
  6. Step 6: Final answer
    x = 558,683.83

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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.