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Finding the Fourth Proportional to 711,955.22, 982,494.67 and 385,268

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Solution

The fourth proportional to 711,955.22, 982,494.67 and 385,268 is: 531,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,955.22 : 982,494.67 = 385,268 : x
  2. Step 2: Convert to fraction form
    711,955.22/982,494.67 = 385,268/x
  3. Step 3: Cross multiply
    711,955.22x = 982,494.67 × 385,268
  4. Step 4: Simplify right side
    711,955.22x = 378,523,756,521.56
  5. Step 5: Solve for x
    x = 378,523,756,521.56/711,955.22
  6. Step 6: Final answer
    x = 531,667.93

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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.