Home / 840,584.62-1,260,783.48-300,819.12

Finding the Fourth Proportional to 840,584.62, 1,260,783.48 and 300,819.12

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Solution

The fourth proportional to 840,584.62, 1,260,783.48 and 300,819.12 is: 451,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,584.62 : 1,260,783.48 = 300,819.12 : x
  2. Step 2: Convert to fraction form
    840,584.62/1,260,783.48 = 300,819.12/x
  3. Step 3: Cross multiply
    840,584.62x = 1,260,783.48 × 300,819.12
  4. Step 4: Simplify right side
    840,584.62x = 379,267,771,672.16
  5. Step 5: Solve for x
    x = 379,267,771,672.16/840,584.62
  6. Step 6: Final answer
    x = 451,195.23

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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.