Home / 669,082.60-1,003,623.90-219,872.80

Finding the Fourth Proportional to 669,082.60, 1,003,623.90 and 219,872.80

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Solution

The fourth proportional to 669,082.60, 1,003,623.90 and 219,872.80 is: 329,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,082.60 : 1,003,623.90 = 219,872.80 : x
  2. Step 2: Convert to fraction form
    669,082.60/1,003,623.90 = 219,872.80/x
  3. Step 3: Cross multiply
    669,082.60x = 1,003,623.90 × 219,872.80
  4. Step 4: Simplify right side
    669,082.60x = 220,669,597,039.92
  5. Step 5: Solve for x
    x = 220,669,597,039.92/669,082.60
  6. Step 6: Final answer
    x = 329,809.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.