Home / 756,577.28-1,135,136.94-324,113.32

Finding the Fourth Proportional to 756,577.28, 1,135,136.94 and 324,113.32

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Solution

The fourth proportional to 756,577.28, 1,135,136.94 and 324,113.32 is: 486,286.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,577.28 : 1,135,136.94 = 324,113.32 : x
  2. Step 2: Convert to fraction form
    756,577.28/1,135,136.94 = 324,113.32/x
  3. Step 3: Cross multiply
    756,577.28x = 1,135,136.94 × 324,113.32
  4. Step 4: Simplify right side
    756,577.28x = 367,913,002,278.04
  5. Step 5: Solve for x
    x = 367,913,002,278.04/756,577.28
  6. Step 6: Final answer
    x = 486,286.08

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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.