Home / 505,385.85-697,427.18-275,942.43

Finding the Fourth Proportional to 505,385.85, 697,427.18 and 275,942.43

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Solution

The fourth proportional to 505,385.85, 697,427.18 and 275,942.43 is: 380,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,385.85 : 697,427.18 = 275,942.43 : x
  2. Step 2: Convert to fraction form
    505,385.85/697,427.18 = 275,942.43/x
  3. Step 3: Cross multiply
    505,385.85x = 697,427.18 × 275,942.43
  4. Step 4: Simplify right side
    505,385.85x = 192,449,751,487.10
  5. Step 5: Solve for x
    x = 192,449,751,487.10/505,385.85
  6. Step 6: Final answer
    x = 380,797.66

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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.