Home / 412,920.93-619,380.23-113,401.79

Finding the Fourth Proportional to 412,920.93, 619,380.23 and 113,401.79

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Solution

The fourth proportional to 412,920.93, 619,380.23 and 113,401.79 is: 170,102.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,920.93 : 619,380.23 = 113,401.79 : x
  2. Step 2: Convert to fraction form
    412,920.93/619,380.23 = 113,401.79/x
  3. Step 3: Cross multiply
    412,920.93x = 619,380.23 × 113,401.79
  4. Step 4: Simplify right side
    412,920.93x = 70,238,827,754.05
  5. Step 5: Solve for x
    x = 70,238,827,754.05/412,920.93
  6. Step 6: Final answer
    x = 170,102.37

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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.