Home / 455,396.10-682,180.46-418,192.80

Finding the Fourth Proportional to 455,396.10, 682,180.46 and 418,192.80

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Solution

The fourth proportional to 455,396.10, 682,180.46 and 418,192.80 is: 626,450.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,396.10 : 682,180.46 = 418,192.80 : x
  2. Step 2: Convert to fraction form
    455,396.10/682,180.46 = 418,192.80/x
  3. Step 3: Cross multiply
    455,396.10x = 682,180.46 × 418,192.80
  4. Step 4: Simplify right side
    455,396.10x = 285,282,956,672.69
  5. Step 5: Solve for x
    x = 285,282,956,672.69/455,396.10
  6. Step 6: Final answer
    x = 626,450.15

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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.