Home / 420,844.83-580,765.86-229,858.68

Finding the Fourth Proportional to 420,844.83, 580,765.86 and 229,858.68

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Solution

The fourth proportional to 420,844.83, 580,765.86 and 229,858.68 is: 317,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,844.83 : 580,765.86 = 229,858.68 : x
  2. Step 2: Convert to fraction form
    420,844.83/580,765.86 = 229,858.68/x
  3. Step 3: Cross multiply
    420,844.83x = 580,765.86 × 229,858.68
  4. Step 4: Simplify right side
    420,844.83x = 133,494,073,968.67
  5. Step 5: Solve for x
    x = 133,494,073,968.67/420,844.83
  6. Step 6: Final answer
    x = 317,204.98

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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.