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Finding the Fourth Proportional to 554,284.90, 765,121.16 and 363,310.60

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Solution

The fourth proportional to 554,284.90, 765,121.16 and 363,310.60 is: 501,504.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,284.90 : 765,121.16 = 363,310.60 : x
  2. Step 2: Convert to fraction form
    554,284.90/765,121.16 = 363,310.60/x
  3. Step 3: Cross multiply
    554,284.90x = 765,121.16 × 363,310.60
  4. Step 4: Simplify right side
    554,284.90x = 277,976,622,070.14
  5. Step 5: Solve for x
    x = 277,976,622,070.14/554,284.90
  6. Step 6: Final answer
    x = 501,504.95

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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.