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Finding the Fourth Proportional to 554,991.08, 765,889.96 and 300,342.27

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Solution

The fourth proportional to 554,991.08, 765,889.96 and 300,342.27 is: 414,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,991.08 : 765,889.96 = 300,342.27 : x
  2. Step 2: Convert to fraction form
    554,991.08/765,889.96 = 300,342.27/x
  3. Step 3: Cross multiply
    554,991.08x = 765,889.96 × 300,342.27
  4. Step 4: Simplify right side
    554,991.08x = 230,029,128,405.75
  5. Step 5: Solve for x
    x = 230,029,128,405.75/554,991.08
  6. Step 6: Final answer
    x = 414,473.56

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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.