Home / 419,770.20-629,732.10-170,477.40

Finding the Fourth Proportional to 419,770.20, 629,732.10 and 170,477.40

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Solution

The fourth proportional to 419,770.20, 629,732.10 and 170,477.40 is: 255,747.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,770.20 : 629,732.10 = 170,477.40 : x
  2. Step 2: Convert to fraction form
    419,770.20/629,732.10 = 170,477.40/x
  3. Step 3: Cross multiply
    419,770.20x = 629,732.10 × 170,477.40
  4. Step 4: Simplify right side
    419,770.20x = 107,355,091,104.54
  5. Step 5: Solve for x
    x = 107,355,091,104.54/419,770.20
  6. Step 6: Final answer
    x = 255,747.29

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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.