Home / 613,380.20-920,257.89-314,072.49

Finding the Fourth Proportional to 613,380.20, 920,257.89 and 314,072.49

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Solution

The fourth proportional to 613,380.20, 920,257.89 and 314,072.49 is: 471,204.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,380.20 : 920,257.89 = 314,072.49 : x
  2. Step 2: Convert to fraction form
    613,380.20/920,257.89 = 314,072.49/x
  3. Step 3: Cross multiply
    613,380.20x = 920,257.89 × 314,072.49
  4. Step 4: Simplify right side
    613,380.20x = 289,027,686,954.45
  5. Step 5: Solve for x
    x = 289,027,686,954.45/613,380.20
  6. Step 6: Final answer
    x = 471,204.79

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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.