Home / 777,109.82-1,165,730.34-216,144.32

Finding the Fourth Proportional to 777,109.82, 1,165,730.34 and 216,144.32

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Solution

The fourth proportional to 777,109.82, 1,165,730.34 and 216,144.32 is: 324,234.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,109.82 : 1,165,730.34 = 216,144.32 : x
  2. Step 2: Convert to fraction form
    777,109.82/1,165,730.34 = 216,144.32/x
  3. Step 3: Cross multiply
    777,109.82x = 1,165,730.34 × 216,144.32
  4. Step 4: Simplify right side
    777,109.82x = 251,965,991,642.67
  5. Step 5: Solve for x
    x = 251,965,991,642.67/777,109.82
  6. Step 6: Final answer
    x = 324,234.73

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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.