Home / 772,379.55-1,065,920.31-482,163.03

Finding the Fourth Proportional to 772,379.55, 1,065,920.31 and 482,163.03

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Solution

The fourth proportional to 772,379.55, 1,065,920.31 and 482,163.03 is: 665,407.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,379.55 : 1,065,920.31 = 482,163.03 : x
  2. Step 2: Convert to fraction form
    772,379.55/1,065,920.31 = 482,163.03/x
  3. Step 3: Cross multiply
    772,379.55x = 1,065,920.31 × 482,163.03
  4. Step 4: Simplify right side
    772,379.55x = 513,947,366,408.14
  5. Step 5: Solve for x
    x = 513,947,366,408.14/772,379.55
  6. Step 6: Final answer
    x = 665,407.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.