Home / 756,718.64-1,135,073.86-324,372.43

Finding the Fourth Proportional to 756,718.64, 1,135,073.86 and 324,372.43

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Solution

The fourth proportional to 756,718.64, 1,135,073.86 and 324,372.43 is: 486,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,718.64 : 1,135,073.86 = 324,372.43 : x
  2. Step 2: Convert to fraction form
    756,718.64/1,135,073.86 = 324,372.43/x
  3. Step 3: Cross multiply
    756,718.64x = 1,135,073.86 × 324,372.43
  4. Step 4: Simplify right side
    756,718.64x = 368,186,666,805.59
  5. Step 5: Solve for x
    x = 368,186,666,805.59/756,718.64
  6. Step 6: Final answer
    x = 486,556.89

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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.