Home / 420,917.37-580,844.28-229,893.85

Finding the Fourth Proportional to 420,917.37, 580,844.28 and 229,893.85

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Solution

The fourth proportional to 420,917.37, 580,844.28 and 229,893.85 is: 317,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,917.37 : 580,844.28 = 229,893.85 : x
  2. Step 2: Convert to fraction form
    420,917.37/580,844.28 = 229,893.85/x
  3. Step 3: Cross multiply
    420,917.37x = 580,844.28 × 229,893.85
  4. Step 4: Simplify right side
    420,917.37x = 133,532,527,779.68
  5. Step 5: Solve for x
    x = 133,532,527,779.68/420,917.37
  6. Step 6: Final answer
    x = 317,241.67

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1.5x scale

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.