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Finding the Fourth Proportional to 432,254.88, 647,682.48 and 327,278.88

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Solution

The fourth proportional to 432,254.88, 647,682.48 and 327,278.88 is: 490,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,254.88 : 647,682.48 = 327,278.88 : x
  2. Step 2: Convert to fraction form
    432,254.88/647,682.48 = 327,278.88/x
  3. Step 3: Cross multiply
    432,254.88x = 647,682.48 × 327,278.88
  4. Step 4: Simplify right side
    432,254.88x = 211,972,796,650.02
  5. Step 5: Solve for x
    x = 211,972,796,650.02/432,254.88
  6. Step 6: Final answer
    x = 490,388.44

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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.