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Finding the Fourth Proportional to 403,325.84, 605,362.83 and 203,786.36

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Solution

The fourth proportional to 403,325.84, 605,362.83 and 203,786.36 is: 305,868.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,325.84 : 605,362.83 = 203,786.36 : x
  2. Step 2: Convert to fraction form
    403,325.84/605,362.83 = 203,786.36/x
  3. Step 3: Cross multiply
    403,325.84x = 605,362.83 × 203,786.36
  4. Step 4: Simplify right side
    403,325.84x = 123,364,684,578.19
  5. Step 5: Solve for x
    x = 123,364,684,578.19/403,325.84
  6. Step 6: Final answer
    x = 305,868.54

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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.