Home / 756,575.28-1,135,133.94-324,111.33

Finding the Fourth Proportional to 756,575.28, 1,135,133.94 and 324,111.33

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Solution

The fourth proportional to 756,575.28, 1,135,133.94 and 324,111.33 is: 486,283.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,575.28 : 1,135,133.94 = 324,111.33 : x
  2. Step 2: Convert to fraction form
    756,575.28/1,135,133.94 = 324,111.33/x
  3. Step 3: Cross multiply
    756,575.28x = 1,135,133.94 × 324,111.33
  4. Step 4: Simplify right side
    756,575.28x = 367,909,771,021.54
  5. Step 5: Solve for x
    x = 367,909,771,021.54/756,575.28
  6. Step 6: Final answer
    x = 486,283.10

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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.