Home / 815,474.64-1,222,727.40-310,072.56

Finding the Fourth Proportional to 815,474.64, 1,222,727.40 and 310,072.56

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Solution

The fourth proportional to 815,474.64, 1,222,727.40 and 310,072.56 is: 464,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,474.64 : 1,222,727.40 = 310,072.56 : x
  2. Step 2: Convert to fraction form
    815,474.64/1,222,727.40 = 310,072.56/x
  3. Step 3: Cross multiply
    815,474.64x = 1,222,727.40 × 310,072.56
  4. Step 4: Simplify right side
    815,474.64x = 379,134,215,100.14
  5. Step 5: Solve for x
    x = 379,134,215,100.14/815,474.64
  6. Step 6: Final answer
    x = 464,924.59

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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.