Home / 421,986.72-632,542.68-263,852.04

Finding the Fourth Proportional to 421,986.72, 632,542.68 and 263,852.04

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Solution

The fourth proportional to 421,986.72, 632,542.68 and 263,852.04 is: 395,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,986.72 : 632,542.68 = 263,852.04 : x
  2. Step 2: Convert to fraction form
    421,986.72/632,542.68 = 263,852.04/x
  3. Step 3: Cross multiply
    421,986.72x = 632,542.68 × 263,852.04
  4. Step 4: Simplify right side
    421,986.72x = 166,897,676,505.07
  5. Step 5: Solve for x
    x = 166,897,676,505.07/421,986.72
  6. Step 6: Final answer
    x = 395,504.57

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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.