Home / 420,910.62-580,834.96-229,887.10

Finding the Fourth Proportional to 420,910.62, 580,834.96 and 229,887.10

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Solution

The fourth proportional to 420,910.62, 580,834.96 and 229,887.10 is: 317,232.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,910.62 : 580,834.96 = 229,887.10 : x
  2. Step 2: Convert to fraction form
    420,910.62/580,834.96 = 229,887.10/x
  3. Step 3: Cross multiply
    420,910.62x = 580,834.96 × 229,887.10
  4. Step 4: Simplify right side
    420,910.62x = 133,526,464,533.02
  5. Step 5: Solve for x
    x = 133,526,464,533.02/420,910.62
  6. Step 6: Final answer
    x = 317,232.35

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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.