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Finding the Fourth Proportional to 526,812.39, 789,529.41 and 211,490.73

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Solution

The fourth proportional to 526,812.39, 789,529.41 and 211,490.73 is: 316,959.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,812.39 : 789,529.41 = 211,490.73 : x
  2. Step 2: Convert to fraction form
    526,812.39/789,529.41 = 211,490.73/x
  3. Step 3: Cross multiply
    526,812.39x = 789,529.41 × 211,490.73
  4. Step 4: Simplify right side
    526,812.39x = 166,978,151,277.37
  5. Step 5: Solve for x
    x = 166,978,151,277.37/526,812.39
  6. Step 6: Final answer
    x = 316,959.42

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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.