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Finding the Fourth Proportional to 505,380.06, 697,425.96 and 275,939.33

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Solution

The fourth proportional to 505,380.06, 697,425.96 and 275,939.33 is: 380,797.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,380.06 : 697,425.96 = 275,939.33 : x
  2. Step 2: Convert to fraction form
    505,380.06/697,425.96 = 275,939.33/x
  3. Step 3: Cross multiply
    505,380.06x = 697,425.96 × 275,939.33
  4. Step 4: Simplify right side
    505,380.06x = 192,447,248,639.88
  5. Step 5: Solve for x
    x = 192,447,248,639.88/505,380.06
  6. Step 6: Final answer
    x = 380,797.08

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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.