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Finding the Fourth Proportional to 449,559.44, 674,384.32 and 129,719.24

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Solution

The fourth proportional to 449,559.44, 674,384.32 and 129,719.24 is: 194,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,559.44 : 674,384.32 = 129,719.24 : x
  2. Step 2: Convert to fraction form
    449,559.44/674,384.32 = 129,719.24/x
  3. Step 3: Cross multiply
    449,559.44x = 674,384.32 × 129,719.24
  4. Step 4: Simplify right side
    449,559.44x = 87,480,621,458.32
  5. Step 5: Solve for x
    x = 87,480,621,458.32/449,559.44
  6. Step 6: Final answer
    x = 194,591.89

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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.