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Finding the Fourth Proportional to 554,440.52, 765,128.46 and 299,791.64

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Solution

The fourth proportional to 554,440.52, 765,128.46 and 299,791.64 is: 413,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,440.52 : 765,128.46 = 299,791.64 : x
  2. Step 2: Convert to fraction form
    554,440.52/765,128.46 = 299,791.64/x
  3. Step 3: Cross multiply
    554,440.52x = 765,128.46 × 299,791.64
  4. Step 4: Simplify right side
    554,440.52x = 229,379,115,834.07
  5. Step 5: Solve for x
    x = 229,379,115,834.07/554,440.52
  6. Step 6: Final answer
    x = 413,712.76

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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.