Home / 757,610.40-1,135,628.40-308,138.40

Finding the Fourth Proportional to 757,610.40, 1,135,628.40 and 308,138.40

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Solution

The fourth proportional to 757,610.40, 1,135,628.40 and 308,138.40 is: 461,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,610.40 : 1,135,628.40 = 308,138.40 : x
  2. Step 2: Convert to fraction form
    757,610.40/1,135,628.40 = 308,138.40/x
  3. Step 3: Cross multiply
    757,610.40x = 1,135,628.40 × 308,138.40
  4. Step 4: Simplify right side
    757,610.40x = 349,930,718,170.56
  5. Step 5: Solve for x
    x = 349,930,718,170.56/757,610.40
  6. Step 6: Final answer
    x = 461,887.43

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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.