Home / 538,972.10-743,780.31-324,236.78

Finding the Fourth Proportional to 538,972.10, 743,780.31 and 324,236.78

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Solution

The fourth proportional to 538,972.10, 743,780.31 and 324,236.78 is: 447,446.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,972.10 : 743,780.31 = 324,236.78 : x
  2. Step 2: Convert to fraction form
    538,972.10/743,780.31 = 324,236.78/x
  3. Step 3: Cross multiply
    538,972.10x = 743,780.31 × 324,236.78
  4. Step 4: Simplify right side
    538,972.10x = 241,160,932,741.80
  5. Step 5: Solve for x
    x = 241,160,932,741.80/538,972.10
  6. Step 6: Final answer
    x = 447,446.04

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1.5x scale

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.