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Finding the Fourth Proportional to 505,846.46, 759,309.86 and 217,800.79

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Solution

The fourth proportional to 505,846.46, 759,309.86 and 217,800.79 is: 326,933.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,846.46 : 759,309.86 = 217,800.79 : x
  2. Step 2: Convert to fraction form
    505,846.46/759,309.86 = 217,800.79/x
  3. Step 3: Cross multiply
    505,846.46x = 759,309.86 × 217,800.79
  4. Step 4: Simplify right side
    505,846.46x = 165,378,287,362.79
  5. Step 5: Solve for x
    x = 165,378,287,362.79/505,846.46
  6. Step 6: Final answer
    x = 326,933.77

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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.