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Finding the Fourth Proportional to 449,213.34, 619,102.49 and 372,327.54

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Solution

The fourth proportional to 449,213.34, 619,102.49 and 372,327.54 is: 513,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,213.34 : 619,102.49 = 372,327.54 : x
  2. Step 2: Convert to fraction form
    449,213.34/619,102.49 = 372,327.54/x
  3. Step 3: Cross multiply
    449,213.34x = 619,102.49 × 372,327.54
  4. Step 4: Simplify right side
    449,213.34x = 230,508,905,020.65
  5. Step 5: Solve for x
    x = 230,508,905,020.65/449,213.34
  6. Step 6: Final answer
    x = 513,139.04

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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.