Home / 754,954.80-1,131,425.52-281,163.12

Finding the Fourth Proportional to 754,954.80, 1,131,425.52 and 281,163.12

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Solution

The fourth proportional to 754,954.80, 1,131,425.52 and 281,163.12 is: 421,369.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,954.80 : 1,131,425.52 = 281,163.12 : x
  2. Step 2: Convert to fraction form
    754,954.80/1,131,425.52 = 281,163.12/x
  3. Step 3: Cross multiply
    754,954.80x = 1,131,425.52 × 281,163.12
  4. Step 4: Simplify right side
    754,954.80x = 318,115,129,250.82
  5. Step 5: Solve for x
    x = 318,115,129,250.82/754,954.80
  6. Step 6: Final answer
    x = 421,369.77

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1.5x scale

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.