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Finding the Fourth Proportional to 554,969.09, 765,857.34 and 300,320.27

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Solution

The fourth proportional to 554,969.09, 765,857.34 and 300,320.27 is: 414,441.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,969.09 : 765,857.34 = 300,320.27 : x
  2. Step 2: Convert to fraction form
    554,969.09/765,857.34 = 300,320.27/x
  3. Step 3: Cross multiply
    554,969.09x = 765,857.34 × 300,320.27
  4. Step 4: Simplify right side
    554,969.09x = 230,002,485,044.93
  5. Step 5: Solve for x
    x = 230,002,485,044.93/554,969.09
  6. Step 6: Final answer
    x = 414,441.98

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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.