Home / 481,620.12-722,654.34-215,560.63

Finding the Fourth Proportional to 481,620.12, 722,654.34 and 215,560.63

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Solution

The fourth proportional to 481,620.12, 722,654.34 and 215,560.63 is: 323,441.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,620.12 : 722,654.34 = 215,560.63 : x
  2. Step 2: Convert to fraction form
    481,620.12/722,654.34 = 215,560.63/x
  3. Step 3: Cross multiply
    481,620.12x = 722,654.34 × 215,560.63
  4. Step 4: Simplify right side
    481,620.12x = 155,775,824,802.63
  5. Step 5: Solve for x
    x = 155,775,824,802.63/481,620.12
  6. Step 6: Final answer
    x = 323,441.27

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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.