Home / 763,560.53-1,145,236.17-422,634.56

Finding the Fourth Proportional to 763,560.53, 1,145,236.17 and 422,634.56

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Solution

The fourth proportional to 763,560.53, 1,145,236.17 and 422,634.56 is: 633,893.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,560.53 : 1,145,236.17 = 422,634.56 : x
  2. Step 2: Convert to fraction form
    763,560.53/1,145,236.17 = 422,634.56/x
  3. Step 3: Cross multiply
    763,560.53x = 1,145,236.17 × 422,634.56
  4. Step 4: Simplify right side
    763,560.53x = 484,016,384,804.04
  5. Step 5: Solve for x
    x = 484,016,384,804.04/763,560.53
  6. Step 6: Final answer
    x = 633,893.93

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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.