Home / 420,926.94-580,919.22-229,969.08

Finding the Fourth Proportional to 420,926.94, 580,919.22 and 229,969.08

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Solution

The fourth proportional to 420,926.94, 580,919.22 and 229,969.08 is: 317,379.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,926.94 : 580,919.22 = 229,969.08 : x
  2. Step 2: Convert to fraction form
    420,926.94/580,919.22 = 229,969.08/x
  3. Step 3: Cross multiply
    420,926.94x = 580,919.22 × 229,969.08
  4. Step 4: Simplify right side
    420,926.94x = 133,593,458,577.72
  5. Step 5: Solve for x
    x = 133,593,458,577.72/420,926.94
  6. Step 6: Final answer
    x = 317,379.21

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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.