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Finding the Fourth Proportional to 644,272.56, 966,407.94 and 270,295.56

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Solution

The fourth proportional to 644,272.56, 966,407.94 and 270,295.56 is: 405,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,272.56 : 966,407.94 = 270,295.56 : x
  2. Step 2: Convert to fraction form
    644,272.56/966,407.94 = 270,295.56/x
  3. Step 3: Cross multiply
    644,272.56x = 966,407.94 × 270,295.56
  4. Step 4: Simplify right side
    644,272.56x = 261,215,775,330.75
  5. Step 5: Solve for x
    x = 261,215,775,330.75/644,272.56
  6. Step 6: Final answer
    x = 405,442.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.