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Finding the Fourth Proportional to 449,651.95, 674,945.09 and 300,931.49

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Solution

The fourth proportional to 449,651.95, 674,945.09 and 300,931.49 is: 451,709.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,651.95 : 674,945.09 = 300,931.49 : x
  2. Step 2: Convert to fraction form
    449,651.95/674,945.09 = 300,931.49/x
  3. Step 3: Cross multiply
    449,651.95x = 674,945.09 × 300,931.49
  4. Step 4: Simplify right side
    449,651.95x = 203,112,231,601.88
  5. Step 5: Solve for x
    x = 203,112,231,601.88/449,651.95
  6. Step 6: Final answer
    x = 451,709.89

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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.