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Finding the Fourth Proportional to 505,104.58, 756,824.28 and 453,018.34

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Solution

The fourth proportional to 505,104.58, 756,824.28 and 453,018.34 is: 678,780.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,104.58 : 756,824.28 = 453,018.34 : x
  2. Step 2: Convert to fraction form
    505,104.58/756,824.28 = 453,018.34/x
  3. Step 3: Cross multiply
    505,104.58x = 756,824.28 × 453,018.34
  4. Step 4: Simplify right side
    505,104.58x = 342,855,278,997.30
  5. Step 5: Solve for x
    x = 342,855,278,997.30/505,104.58
  6. Step 6: Final answer
    x = 678,780.78

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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.