Home / 756,740.62-1,135,078.12-188,109.69

Finding the Fourth Proportional to 756,740.62, 1,135,078.12 and 188,109.69

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Solution

The fourth proportional to 756,740.62, 1,135,078.12 and 188,109.69 is: 282,156.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,740.62 : 1,135,078.12 = 188,109.69 : x
  2. Step 2: Convert to fraction form
    756,740.62/1,135,078.12 = 188,109.69/x
  3. Step 3: Cross multiply
    756,740.62x = 1,135,078.12 × 188,109.69
  4. Step 4: Simplify right side
    756,740.62x = 213,519,193,278.98
  5. Step 5: Solve for x
    x = 213,519,193,278.98/756,740.62
  6. Step 6: Final answer
    x = 282,156.38

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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.