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Finding the Fourth Proportional to 554,751.90, 765,555.03 and 300,100.86

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Solution

The fourth proportional to 554,751.90, 765,555.03 and 300,100.86 is: 414,137.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,751.90 : 765,555.03 = 300,100.86 : x
  2. Step 2: Convert to fraction form
    554,751.90/765,555.03 = 300,100.86/x
  3. Step 3: Cross multiply
    554,751.90x = 765,555.03 × 300,100.86
  4. Step 4: Simplify right side
    554,751.90x = 229,743,722,880.33
  5. Step 5: Solve for x
    x = 229,743,722,880.33/554,751.90
  6. Step 6: Final answer
    x = 414,137.78

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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.