Home / 412,868.97-619,154.84-142,923.78

Finding the Fourth Proportional to 412,868.97, 619,154.84 and 142,923.78

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Solution

The fourth proportional to 412,868.97, 619,154.84 and 142,923.78 is: 214,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,868.97 : 619,154.84 = 142,923.78 : x
  2. Step 2: Convert to fraction form
    412,868.97/619,154.84 = 142,923.78/x
  3. Step 3: Cross multiply
    412,868.97x = 619,154.84 × 142,923.78
  4. Step 4: Simplify right side
    412,868.97x = 88,491,950,495.40
  5. Step 5: Solve for x
    x = 88,491,950,495.40/412,868.97
  6. Step 6: Final answer
    x = 214,334.22

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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.