Home / 756,720.64-1,135,076.86-324,374.43

Finding the Fourth Proportional to 756,720.64, 1,135,076.86 and 324,374.43

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Solution

The fourth proportional to 756,720.64, 1,135,076.86 and 324,374.43 is: 486,559.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,720.64 : 1,135,076.86 = 324,374.43 : x
  2. Step 2: Convert to fraction form
    756,720.64/1,135,076.86 = 324,374.43/x
  3. Step 3: Cross multiply
    756,720.64x = 1,135,076.86 × 324,374.43
  4. Step 4: Simplify right side
    756,720.64x = 368,189,909,468.69
  5. Step 5: Solve for x
    x = 368,189,909,468.69/756,720.64
  6. Step 6: Final answer
    x = 486,559.89

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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.