Home / 420,919.29-580,846.84-229,895.77

Finding the Fourth Proportional to 420,919.29, 580,846.84 and 229,895.77

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Solution

The fourth proportional to 420,919.29, 580,846.84 and 229,895.77 is: 317,244.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,919.29 : 580,846.84 = 229,895.77 : x
  2. Step 2: Convert to fraction form
    420,919.29/580,846.84 = 229,895.77/x
  3. Step 3: Cross multiply
    420,919.29x = 580,846.84 × 229,895.77
  4. Step 4: Simplify right side
    420,919.29x = 133,534,231,533.87
  5. Step 5: Solve for x
    x = 133,534,231,533.87/420,919.29
  6. Step 6: Final answer
    x = 317,244.27

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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.