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Finding the Fourth Proportional to 554,993.43, 765,893.34 and 300,344.64

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Solution

The fourth proportional to 554,993.43, 765,893.34 and 300,344.64 is: 414,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,993.43 : 765,893.34 = 300,344.64 : x
  2. Step 2: Convert to fraction form
    554,993.43/765,893.34 = 300,344.64/x
  3. Step 3: Cross multiply
    554,993.43x = 765,893.34 × 300,344.64
  4. Step 4: Simplify right side
    554,993.43x = 230,031,959,480.70
  5. Step 5: Solve for x
    x = 230,031,959,480.70/554,993.43
  6. Step 6: Final answer
    x = 414,476.91

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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.