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Finding the Fourth Proportional to 554,754.90, 765,559.17 and 300,103.86

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Solution

The fourth proportional to 554,754.90, 765,559.17 and 300,103.86 is: 414,141.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,754.90 : 765,559.17 = 300,103.86 : x
  2. Step 2: Convert to fraction form
    554,754.90/765,559.17 = 300,103.86/x
  3. Step 3: Cross multiply
    554,754.90x = 765,559.17 × 300,103.86
  4. Step 4: Simplify right side
    554,754.90x = 229,747,261,975.40
  5. Step 5: Solve for x
    x = 229,747,261,975.40/554,754.90
  6. Step 6: Final answer
    x = 414,141.92

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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.