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Finding the Fourth Proportional to 839,846, 1,259,773.62 and 208,759.82

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Solution

The fourth proportional to 839,846, 1,259,773.62 and 208,759.82 is: 313,140.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,846 : 1,259,773.62 = 208,759.82 : x
  2. Step 2: Convert to fraction form
    839,846/1,259,773.62 = 208,759.82/x
  3. Step 3: Cross multiply
    839,846x = 1,259,773.62 × 208,759.82
  4. Step 4: Simplify right side
    839,846x = 262,990,106,809.28
  5. Step 5: Solve for x
    x = 262,990,106,809.28/839,846
  6. Step 6: Final answer
    x = 313,140.87

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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.