Home / 851,131.27-1,275,102.82-763,495.75

Finding the Fourth Proportional to 851,131.27, 1,275,102.82 and 763,495.75

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Solution

The fourth proportional to 851,131.27, 1,275,102.82 and 763,495.75 is: 1,143,813.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,131.27 : 1,275,102.82 = 763,495.75 : x
  2. Step 2: Convert to fraction form
    851,131.27/1,275,102.82 = 763,495.75/x
  3. Step 3: Cross multiply
    851,131.27x = 1,275,102.82 × 763,495.75
  4. Step 4: Simplify right side
    851,131.27x = 973,535,583,883.02
  5. Step 5: Solve for x
    x = 973,535,583,883.02/851,131.27
  6. Step 6: Final answer
    x = 1,143,813.67

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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.