Home / 419,548.50-578,956.68-238,236.48

Finding the Fourth Proportional to 419,548.50, 578,956.68 and 238,236.48

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Solution

The fourth proportional to 419,548.50, 578,956.68 and 238,236.48 is: 328,754.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,548.50 : 578,956.68 = 238,236.48 : x
  2. Step 2: Convert to fraction form
    419,548.50/578,956.68 = 238,236.48/x
  3. Step 3: Cross multiply
    419,548.50x = 578,956.68 × 238,236.48
  4. Step 4: Simplify right side
    419,548.50x = 137,928,601,515.69
  5. Step 5: Solve for x
    x = 137,928,601,515.69/419,548.50
  6. Step 6: Final answer
    x = 328,754.84

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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.