Home / 851,133.27-1,275,105.82-763,497.75

Finding the Fourth Proportional to 851,133.27, 1,275,105.82 and 763,497.75

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Solution

The fourth proportional to 851,133.27, 1,275,105.82 and 763,497.75 is: 1,143,816.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,133.27 : 1,275,105.82 = 763,497.75 : x
  2. Step 2: Convert to fraction form
    851,133.27/1,275,105.82 = 763,497.75/x
  3. Step 3: Cross multiply
    851,133.27x = 1,275,105.82 × 763,497.75
  4. Step 4: Simplify right side
    851,133.27x = 973,540,424,581.91
  5. Step 5: Solve for x
    x = 973,540,424,581.91/851,133.27
  6. Step 6: Final answer
    x = 1,143,816.67

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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.