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Finding the Fourth Proportional to 554,818.21, 765,645.92 and 300,163.93

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Solution

The fourth proportional to 554,818.21, 765,645.92 and 300,163.93 is: 414,224.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,818.21 : 765,645.92 = 300,163.93 : x
  2. Step 2: Convert to fraction form
    554,818.21/765,645.92 = 300,163.93/x
  3. Step 3: Cross multiply
    554,818.21x = 765,645.92 × 300,163.93
  4. Step 4: Simplify right side
    554,818.21x = 229,819,286,046.35
  5. Step 5: Solve for x
    x = 229,819,286,046.35/554,818.21
  6. Step 6: Final answer
    x = 414,224.48

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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.