Home / 420,919.03-580,846.60-229,895.51

Finding the Fourth Proportional to 420,919.03, 580,846.60 and 229,895.51

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Solution

The fourth proportional to 420,919.03, 580,846.60 and 229,895.51 is: 317,243.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,919.03 : 580,846.60 = 229,895.51 : x
  2. Step 2: Convert to fraction form
    420,919.03/580,846.60 = 229,895.51/x
  3. Step 3: Cross multiply
    420,919.03x = 580,846.60 × 229,895.51
  4. Step 4: Simplify right side
    420,919.03x = 133,534,025,338.77
  5. Step 5: Solve for x
    x = 133,534,025,338.77/420,919.03
  6. Step 6: Final answer
    x = 317,243.97

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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.