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Finding the Fourth Proportional to 554,819.72, 765,647.99 and 300,165.44

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Solution

The fourth proportional to 554,819.72, 765,647.99 and 300,165.44 is: 414,226.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,819.72 : 765,647.99 = 300,165.44 : x
  2. Step 2: Convert to fraction form
    554,819.72/765,647.99 = 300,165.44/x
  3. Step 3: Cross multiply
    554,819.72x = 765,647.99 × 300,165.44
  4. Step 4: Simplify right side
    554,819.72x = 229,821,060,474.40
  5. Step 5: Solve for x
    x = 229,821,060,474.40/554,819.72
  6. Step 6: Final answer
    x = 414,226.56

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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.