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Finding the Fourth Proportional to 450,695.42, 621,958.64 and 269,398.56

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Solution

The fourth proportional to 450,695.42, 621,958.64 and 269,398.56 is: 371,769.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,695.42 : 621,958.64 = 269,398.56 : x
  2. Step 2: Convert to fraction form
    450,695.42/621,958.64 = 269,398.56/x
  3. Step 3: Cross multiply
    450,695.42x = 621,958.64 × 269,398.56
  4. Step 4: Simplify right side
    450,695.42x = 167,554,761,995.56
  5. Step 5: Solve for x
    x = 167,554,761,995.56/450,695.42
  6. Step 6: Final answer
    x = 371,769.39

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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.